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EY-4753E-01-1

2000

37 pages

Original

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Document:	VAXBI Maintenance Guide
Order Number:	EY-4753E-01
Revision:	1
Pages:	37
Original Filename:

OCR Text

EY-47S3E-OI-OOOI

VAXBI
MAINTENANCE GUIDE
(Preliminary)

FOR INTERNAL USE ONLY

TABLE OF CONTENTS
1 ADDRESS SPACE
BI Address Space ............................................... 1
2
BI Node Register Space ......
0

•

•••••

••••••••••

••

•••

•

••

BI REGISTERS

Summary ............... '" ........................
Device Register ................................................
BI Control And Status Register .................................
Bus Error Register .............................................
Error Interrupt Control Register ...............................
Interrupt Destination Register ....................
o

•••••••••••••

••••••••••••

4
5

5
5

BIIC SPECIFIC REGISTERS
Interprocessor Interrupt Mask Register ..........
6
Interprocessor Interrupt Destination Register .................. 6
Interprocessor Interrupt Source Register ....................... 6
Starting Address Register ...................................... 6
6
Ending Address Register.....................................
BCI Control Register .. ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6
Wri te Status Register ......
7
User Interface Interrupt Control Register ......
7
General Purpose Registers ...
7
The Receive Console Data Register (RXCD)
7
o

. . . . . .

. . . . . . . . . . .

••

•••••••••

••••••

. . .

•

0...

••••

•

••

00'

••

•••••

•

••••••

•••

•

•••••••••••••••••••

•

••••

•

••

••••••

•

••••••••••••••••••••••••••••

•

••

•

••••

•

••

11
12

BCI SIGNALS
BCI Signal Groupings .
BCI Signal Descriptions ...
0

BIIC
Block Diagram .
BIIC Pinout ...

. . . . . .

BI SIGNALS
BI Signal Groupings ....
BI Signal Descriptions ... . ....
BI Signal Encoding ..

•••••••••••••••

•••••••••••••••••

.0.00.

•••••••••••••

•••••••••••••••••••

•

••••••••••••••••••••

•

••

13
14

BCI SIGNAL ENCODING
Event Code Table ..............................
Response Lines BCI - (RS<1:0> L) ..............................
Request· Lines ...........................
BI Command Code Table .........................................
Data Length Codes ..........................
Arbi tration Mode ..............................................
BCI SC<2:0> L ...............................................
0

•

FOR INTERNAL USE ONLY

•

••

•

••

•

••

16
16
17
17
17
17
18

TABLE OF CONTENTS
8 TRANSACTION DESCRIPTIONS
Mnecmonic Codes ............................................... 19
READ-Type Transaction Format .................................. 20
WRITE And WCI Transaction Format .............................. 21
WMCI ADd UWNCI Transaction Format ............................. 22
IDENT Transaction Format ,..................................... 23
INTERRUPT Transaction Format .................................. 24
IPINTR Transaction Format ..................................... 25
BROADCAST ,jransaction Format .................................. 26
STOP Transaction Format ....................................... 27
INVALIDATE Transaction Format ................................. 28
QUADWORD READ with NO ACK response ............................. 29
QUADWORD READ with STALL ...................................... 30
OCTAWORD WRITE. STALLED then RETRIED .......................... 31
Two LONGWORD WRITES with second WRITE using IMBEDED ARB ... " . .. 32
9

TROUBLESHOOTING FLOWCHART ........................................ '.. 33

FOR INTERNAL USE ONLY

page 1

ADDRESS SPACE
BI ADDRESS SPACE
I/O SPACE

DEV 0 - 8KB

200o 0000

DEV 1 - 8KB

200o 2000

DEV 2 - 8KB

200o 4000

DEY 3 - 8KB

200o 6000

DEV 4 - 8KB

200o 8000

·DEV 5 - 8KB

2.00o AOOO

DEV 6 - 8KB

200o COOO

DEV 7 - -8KB

200o EOOO

DEV 8 - 8KB

200 1 0000

S
P
A
C
E

DEV 9 - 8KB

200 1 2000

DEV 10 - 8KB

200 1 4000

DEV 11 - 8KB

200 1 6000

DEV 12 - 8KB

200 1 8000

DEV 13 - 8KB

200 1 AOOO

DEV 14 - aKB

200 1 COOO

0000 0000

/FFe-

I
N

BI Memory

512 MB
I

1FFF FFFF I--------~
2000 0000
I/O SPACE
~ Z~

for BI ~

21FF FFFF I--------~
2200 0000

DEV 15 - 8KB . 200 1 EOOO
_______2--c)OI

"r."-: 1£-"
,"~

Multicast Space 200 2 0000
RESERVED
128KB
480 MB

Node Private
Space

200 4 0000

3.75MB

ff.crJ,I"Fr-r~

Adapter
Window Space #0
25~FJ~P
~

204 o 0000

~ JFFFF

Adapter
207 C 0000
Window Space #15
256KB

RESERVED
3FFF FFFF

24MB

FOR INTERNAL USE ONLY

208o 0000
21FF FFFF

t.~ t/~.ttl5

page 2

ADDRESS SPACE

bb = base address of node ID space
(2000 0000 + 2000(H)*NODEID)

BIIC Register Map
31

24 23

16 15

08 07

bb+ooi
BI Required Registers
bb+101~__________________________________________________~

bb+14
BIIC Specific
Device Registers
bb1CLI---_ _ _ _ _ _ _ _ _---t

bb+toO

IfF£.-.

General Purpose
Device Registers

bb+~I___________________________________________________~

ft/OotT 5-'-abO (9()/)()yf 2.0()~",=" 2-()O()A~"tJ

FOR INTERNAL USE ONLY

page 3

BIIC REGISTERS
BI REQUIRED REGISTERS
31

~~+:~I~

24 23

16 15

_______________________D_~_V_~_c_:_R_e_g_i_s_t_e_r

OS 07

____________________-;

£)£)+04

0.1 ~ontro.1 I .,tatus n.egl.SToer

bb+OS

Bus Error Register

bb+OC

Error Interrupt Control Register

bb+10

Interrupt Destination Register
BIIC Specific Device Registers
31

24 23

16 15

08 07

bb+14

IP Interrupt Mask Register

bb+18

IP Interrupt Destination Register

bb+1C

IP Interrupt Source Register

bb+20

Starting Address Register

bb+24

Ending Address Register

bb+2S

BCI Control Register

bb+2C

Write Status Register

bb+30

Unused

bb+34

Unused

bb+3S

Unused

bb+3C

Unused

bb+40

User Interface Interrupt Control Register

bb+44

Unused
bb+EC
bb+FO

General Purpose Register 0

bb+F4

General Purpose Register 1

bb+FS

General Purpose Register 2

bb+FC

General Purpose Register ·3

FOR INTERNAL USE ONLY

page 4

BI REQUIRED REGISTERS

Device Register:
(normal R/W,Diagnostic Mode Writable, loaded CDClO deassertion)
31

24 23

08 01

16 15

bb+OOI'-____D_e_v_i_c_e_R_e_v_i_s_i_o_n__________D_e_v_i_c_e_,_T_yp_e_ _ _ _-'

"rI

BI Control And Status Register:
31

24 23

bb+041 BI Inter. Rev.

(

J-l'l ~ J;L('"
16 15

08 01

I BI InterRE:ypj~ellllllll ~ III I INode ~DI
ARB

SES
INIT
BROKE
STS
SST ---..,.....----.1
UWP
HEIE - - - - - - - - - '
SEIE - - - - - - - -......

-------.I

RES (RO) -- Hard Error Summary
BES (RO) -- Soft Error Summary
IN!T (Write-1-to-Clear, set ODClO deassertion t by STOP command)
BROKE (Write-1-to-Clear, set ODClO deassertion)
STS (R/W, Cleared ODClO deassertion) -- Self Test Status
SST (Special Case) -- Start Self Test
UWP (Write-1-to-Clear,Cleared ODClO deassertion
t by STOP command) -- Unlock Write Pending
HEIE (R/W,Cleared ODClO deassertion
t by STOP command) -- Hard Error Interrupt Enable
SEIE (R/W,Cleared ODClO deassertion
t by STOP command) -- Soft Error Interrupt Enable

FOR INTERNAL USE ONLY

11'D .. I/fI~
/

page 5

BliC REQUIRED REGISTERS
Bus Error Register:
(Write-1-to-Clear,Cleared GDCLO deassertion)
08 07

16 15

24 23

bi~~Qll!I!.lI!ll.l.!ll.l.!ll. ~I-~~::

=d/I!(L!

= .==1==1

IPE
CRn - - - - - '
NPE - - - -....

IS!

TDF --------'
lYE -----~

CPE - - - - - - - -....
SPE ------------~
ROS - - - - - - - - - - '
RTO
STO - - - - - - - - - - - '
BTO --------------~

----------...1

NEX ----------------------ICE --------------------~

SOFT ERROR BITS

I <---- HARD ERROR BITS ---->1
<31 16>

NMR -- NO ACK to Multi-Responder Command
MTCE -- Master Tranmit Check Error
CTE -- Control Transmit Error
MPE -- Master Parity Error
ISE -- Interlock Sequence Error
TDF -- Transmitter During Fault
lVE -- IDENT Vector Error
CPE -- Command Parity Error
SPE -- Slave Parity Error
ROS -- Read Data Substitute

·<->1
<2 0>

RTO -- Retry Time aut
STO -- Stall Time aut
BTO -- Bus Tlme Out
NEX -- Non-Existent Address
ICE -- Illegal Confirmation Error
UPEN -- User Parity Enable
IPE -- Id Parity Err
CaD -- Corrected Read Data
NPE -- Null bus Parity Error

Error Interrupt Control Register:
31

24 23

bb+OC,--1_0'_"

II!

INTAB

INTC
SENT
FORCE

16 15

08 07

lo__o. .I_----..;...ve
..
__
ct_or_ _......
lo--'o/

I!II...-IL__
EVE
__
L........

~ I II

Interrupt Abort
Interrupt Complete

Interrupt Destination Register:
(R/W, DCLOC)
31

bb+iol

24 23

o's

16 15

08 07

Interrupt Destination

I...-------------------------~--------------------------~

FOR INTERNAL USE ONLY

page 6

BIIC SPECIFIC REGISTERS
BIIC SPECIFIC REGISTERS
31

24 23

bb+14

IPINTR Mask

bb+18

O's

16 15

O's
IPINTR/STOP Destination(s)
O's

bb+1C

IPINTR Source

bb+20 o 0

Starting Address

O's

bb+24 o 0

Ending Addres:,

O's

(R/W, cleared OOCLO deassertion)

BCl Control Register:
31
bb+

08 01

24 23

16 15

08 01

1'----0_.s--~oII ! II! ! ! ! ! ! ! ! ! I I I O's
BURSTEN

- -

IPINTR/STGP FORCE
MSEN
BDCSTEN
STOPEN -----~
RESEN
-_
-' ....J
lDENTEN- _-_-_
__-_
lNVALEN _ _ _ _ _ _ _ _...J
WlNVALEN - - - - - - - - - - '
UCSREN - - - - - - - - - - - - - '
BlCSREN - - - - - - - - - - - - - - '
lNTREN - - - - - - - - - - - - - '
IPlNTREN - - - - - - - - - - - - - '
PNXTEN --------~--------'
RTDEVEN - - - - - - - - - - - - - - - - - '
Write Status Register: (Write-1-to-Clear,cleared ODCLD deassertion)
31

24 23

bb+2C!I!~I'!t

16 15

08 01

O's
GPRO

L.::: GPR1
GPR2
GPR3

Force IPINTR/STOP Command Register:

----------L'-=Ji"--____

31
30
bb+

24 23

16 15

12 11

08 01

I,,--

MIDEN

FOR INTERNAL USE ONLY

---I

page 7

BIIC Registers

User Interface Interrupt Control Register:
31

2S 27

bb+40 I· INTAB

24 23

INTC·

20 19

os 07

02 00

SENT 1 FORCE 11....0...l.I_ _ _ _VE_C_T_OR_ _ _-_-......IO_0. . .t1
EX VECTOR

General Purpose Registers:
31

16 15

(R/W, DCLOC)

24 23

8 7

16 15

bb+FO

General Purpose Register

bb+F4

General Purpose Register

bb+FS

General Purpose RegIster

bb+FC

General Purpose Register

The Receive Console Data Register (RICO):
31

16 15

bb+ 200 1...._ _ _ _ _R_e_s_e_r_v_ed_ _ _ _ _ _

_
Busy flag

OS 07

llo 0 01

JJL--L-I
~

Sending console's node ID
Data Command/message character - - - - - - - - - - -

FOR INTERNAL USE ONLY

page 8

BI Signal Description
DATAPATH SIGNALS (37 Total)

32
BI 1<3:0>

BI 0<31:00> L
SYNCHRONOUS CONTROL SIGNALS (5 Total)

BI NO ARB L

BI BSY L

BI CNF<2:0>L

CLOCK SIGNALS (4 Total)

BI TIME +/-

BlPHAS! +/-

ASYNCHRONOUS CONTROL SIGNALS (6 Total)

BI AC LO L

BI DC LO L

BI RESET L

BI STF L

BI BAD L

SPARE

FOR INTERNAL USE ONLY

BI PO L

page 9

BI Signal Description
Abbreviations used: 00 - Open Drain
OC - Open Collector
OECL - Differential ECL
Signal Name

Number/Type

Description

DAiAPAiH SIGNALS
BI 0<31:00> L

32/00

Bidirectional lines used for arbitration
sequences and all address and data transfers

BI I<3:0> L

4/00

Multipurpose bidirectional lines used to
carry the Command. Identity of current BI
Master. and the Byte Mask.

BI PO L

1/00

Bidirectional line used to generate odd
parity for the I lines during ARB and for
the 0 and I lines during data cycles.

SYNCHRONOUS CONTROL SIGNALS
BI NO ARB L

1/00

Bidirectional line used to inhibit the use
of the BI 0 lines for arbitration. This
signal is also asserted during BIIC self
test to prevent other nodes from starting
transactions untll al~ nodes are ready.

BI BSY L

1/00

Bidirectional line indicating a transaction
is in progress

BI CNF<2:0> L

3/00

Bid1rectional lines used for the response to
command and da.ta cycles.

BI TIME +/-

2/0ECL

20 MHz square wave used together with BI
PHASE to provide timing for all nodes.

+/-

2/0ECL

5 MHz squre wave used together with BI TIME
to provide timing for all nodes.

CLOCK SIGNALS

BI PHASE

ASYNCHRONOUS CONTROL SIGNALS
BI AC LO L

1/00

Input only. Indicates that the AC line
voltage has dropped below a safe limit.

BI DC LO L

1/00

Input only. Indicates that the DC voltages
are not within tolerance.

BI RESET L

l/OC

Wire-or'd signal. not connected to BIIC.
Provides
a
system
wide mechanism for
initiating a BI power-up sequence.

BI STF L

l/OC

Self Test Fast
not connected to BIIC.
Enables a faster system self-test.

BI BAD L

l/OC

Wire-or'd signal, not connected to BIIC.
Provides system-wide mechanism for reporting
Node
self
test
failure.
BI

FOR INTERNAL USE ONLY

page 10

BI SIGNAL ENCODING
CONFIRMATION LINES
BI CNF<2:0> L

HHH
HHL
HL H
HL L
L HH
L HL
LLH
LLL

Description
NO ACK (No Acknowledgement)
Illegal
Illegal
ACK
Illegal
STALL
RETRY
Illegal
COMMAND CODE TABLE

BI 1<3:0> L

HHHH
~. H H H L
HHL H
• HHL L

t. ~

Description
~\ READ

~JVINTLK

a.L-L-a~~..

INTERPROCESSOR INTERRUPT,

/1 ~L H L L

lV'~ ~~
,

_~.

UWMCI

L L L L

L HHL

L H L H

. UNLOCICWRlTE . MASlC(CACHE INTENT)

IRCI
RCI
WRITE
WCI

L L HL
LLLH

'l "~'-L H H H I

Single
Single
Single
Single
Single
Single ..
Single
Multiple
Single

READ
READ (CACHE INTENT)

WRITE MASK (CACHE INTENT)
• MAIIi: , WMCI
INTERRUPT AlQ~IC~ f~~~ INTR
IDENTIFY .
IDENT
(reserved)
It OW' ~ •
1M
(reserved)
L (oc.iJ+.. I
~ .. IIJ 5t11t 'T
STOP
~"'
STOP ~
Multfpre~"'''
INVALIDATE ~~
INVAL
Multiple
BROADCAST
BDCST
*NOT USED*

'-. H L L L

_....,~

Single or
Multiple

(reserved)

\' READ WITH CACHE INTENT
,_t\ H L H H
f
WRITE
(' H L H L ",\-:1 WRITE WITH CACHE INTENT

.....

Mnemonic

L L H H

~INTR

lllultiple

(PII '" f.\.f(.{A ~,~

DATA LENGTH CODES
BI D<31:30> L
H H
H L
L H
L L

DATA LENGTH

MNEMONIC

RESERVED CODE
4 byte (long)
8 byte (q:uad)
16 byte (octa)

LW
QW
OW

DATA STATUS
BI 1<3:0> L

HXHH
H XHL
HXL H
HXL L
L XHH
L XHL
L XL H
L XL L

Description
-

RESERVED CODE READ DATA
CORRECTED READ DATA
READ DATA SUBSTITUTE
RESERVED CODE READ DATA/DON'T CACHE
CORRECTED READ DATA/DON'T CACHE
READ DATA SUBSTITUTE/DON'T CACHE

FOR INTERNAL USE ONLY

Mnemonic
RD
CRD
RDS ~
RDDC
CRDDe
RDSDe

page 11

BIIC BLOCK DIAGRAM
BIIC

USER INTERFACE

MASTER
PORT
INTERFACE

BCIBUS

BI BUS

- - - - - - - ' > BCI RQ<1:0> L
1;~
> BCI MAB L
< - - - - - - - BCI RAK L r ~
<
BCI NXT L
<
BCI MDE L

Ai'

-r,J

BI BSY L
- <-->
BI NO ARB L
<-->
BI CNF<2:0> L <-->
BCI D<31: 00> H IJ~-" BI 0<31 :00> L <-->
"-j1. BI I<3:0> L <-->
BI PO L
<-->

~---~>. BCI 1<3:0> H
~~
BCI PO H

-1'"

~ <
<

B.CI EV<4:0>
BCI AC LO L
BCI DC La

BI AC La L
BI DC LO L

SLAVE
PORT
INTERFACE

> BCI &8<1: 0> L
< : - - - - - - - BC! CLE H
<
BCI SDE L
~. II
<
BCI SEL L
<
BCI SC<2:0> L

INTERRUPT
paRr
INTERFACE

- - - - - - - > BCI INT<7: 4> L

I e

r.~

BCI TIME L

BCI PHASE L

FROM BI CLOCK RECEIVER

FOR INTERNAL USE ONLY

<-<--

BIIC PINOUT

page 12

P ACLO i02

dOO

d02

d03

d06

d07

d10

d11

dl4

d16

d19

d20

VBB

-- -- -- -- -- -- -- -- -- -- -- -- -- -N

aelo iOl' i03

dOl

dOS

d08

d09

d12

dlS

d18

d22

N/C d2S

-- -- -- -- -- -- -- -- -- -- -- -- -- -M nxt

ele

iOO

+SV

GNO

d04

GNO

dl3

dl7

d21

-- -- -L evOl rak

d26

+5V

GND

d27

d29

-- -- --

ev03 evoo.. GND

GNO

-- -- --

delo ev04 ev02

GNO

H sde

mde

DCLO GNO

sel
OF

BIIC

PACKAGE

GNO

-- -- --

d30

d3l

scOO

scOl sc02

029

031

-- -- --

lower case -- BCI signals
upper case -- BI. power, ground,
special signals

rqO

ci28

-- -- --

int7 int6

F' intS mab

-- -- --

TOP VIEW

-- -- --

d24

-- -- --

d23

GND

028

030

-- -- --

int4 rsOl GNO

024

026

027

019

022

025

-- -- -0

rqOl phase +SV

KEY

-- -- -- --

-- -- -C

rsOO NOARB VBB CNFO GNO

I03

GND

GNO

009

016

GNO

GREF 020

023

-- -- -- -- -- -- -- -- -- -- -- -- -- -B time N/C

CNFl IOO

I02

001

004

DOS

008

011

013

015

018

021

-- -- -- -- -- -- -- -- -- -- -- -- -- -A

BSY

CNF2 I01

000

002

003

006

007

010

012

014

017

VREF

FOR INTERNAL USE ONLY

page 13

BCI Signal Description
DATAPATH CLASS (37 Total)

32
BCI 1<3:0> H

BCI 0<31:00> H

BCI PO H

MASTER CLASS (6 Total)
To BIIC:

BCI RQ<1:0> L

From BIle:

BCI MAB L

BCI RAK L

Bel NXT L

BCI MOE L

SLAVE CLASS (8 Total)
To BIIC:

From BIIC:

r:l

L.J

BCI RS<1:0> L

BCI CLE H

BCI SOE L

BCI SEL L

COMMON CONTROL CLASS (7 Total)

BCI AC LO L

BCI DC LO L

BCI EV <4:0> L

INTERRUPT CLASS (4 Total)

BCI INT<7:4> L

FOR INTERNAL USE ONLY

BCI SC<2:0> L

page 14

BCI Signal Description
Description

Signal Name
DATAPATH CLASS
BCI 0<31:00> H Bi-directional
transfers.

tri-state lines used for all address and data

BCI 1<3:0> H

Bi-directional tri-state lines used to transfer the Command.
Read Status and Write Mask.

BCI PO H

Bidirectional line used to generate odd parity for the BCI
0<31:00> and BCI 1<3:0> lines.

MASTER CLASS
BCI RQ<1:0> L

REQUEST lines driven by the master port interface to cause
the BIIC to perform a BI transaction. a loopback transaction
. or enter diagnostic mode.

·BCI MAD L

MASTER ABORT line driven by the master port interface to
abort the current master port transaction.

BCI RAK L

REQUEST ACKNOWLEDGE line driven by the BIIC to inform the
master port that a transaction requested by the master port
has been initiated.

BCI NXT L

NEXT line. driven by the BIIC to request the next data word
from the master on write transactions and to indicate that
the current data on BCI 0<31:00> H is valid

BCI MOE L

MASTER
DATA ENABLE l1ne, driven by the BIIC
command/address information from the master port.

gate

SLAVE CLASS
BCI RS<1:0> L

RESPONSE lines driven by the slave port to indicate ~hat confermat ion code to send out on the BI in response to command
and data cycles involving this slave port.

BCI CLE H

COMMAND LATCH ENABLE line driven by the BIIC to indicate the
presence of a Command/address cycle.

BCI SDE L

SLAVE DATA ENABLE line driven by the BIIC to indicate that
data to transmitted on the BI should be driven on BCI
0<31:00> H. BCI 1<3:0> H, and BCI PO H lines.

BCI SEL L

SELECT line driven by the BIIC to inform the slave that it
has been selected by a BI transaction.

BCI SC<2:0> L

SELECT CODE lines driven by the BIIC to give detailed selection information. A select code always accompanies an assertion of BCI SEL Land vice-*ersa.

FOR INTERNAL USE ONLY

BCI Signal Description

page 15

Signal Name

Description

COMMON CONTROL CLASS
BCI AC LO L

Buffered and synchronized version of BI AC LO L.

BCI DC LO L

Buffered and synchronized version of BI DC LO L.

BCI EV <4:0> L EVENT CODE lines used to indicate Significant events in the
BIIC or on the BI. There are three classes of event codes'
Summary codes, used to indicate the result of a transaction
involving this node, Status codes used to provide status during a transaction, and Special codes used to provide information not related to a particular transaction.
INTERRUPT CLASS
BCI INT<7:4> L INTERRUPT
BI

REQUEST lines used to cause the BIIC to generate a
Interrupt
transaction.

FOR INTERNAL USE ONLY

page 16

SIGNAL ENCODING
SIGNAL ENCODING
Event Code Table
BCI EV<4:0> L
43210
Mnemonic

Class

Type

SUM
SUM

M:INFO
S:INFO
M:ERROR
INFO
M:INFO
S:INFO
M:INFO

HHHHH
HHHHL
HHHL H
HHHL L
HHL HH
HHL HL
HHL L H
HHL L L

NO EVENT
MCP
AKR8D
BTO
STP
RCR
IRW
ARCR

SPC
SPC

HL HHH
HL HHL

NICI
NICIP

SUM

HL HL H
HL HL L

AKRE

SUM

IAL

STA

I:INFO
I: INFO
I: INFO

HL L HH
HLLHL
HL L L H
HL L L L

SUM

SUM
STA

I:ERR/INFO
I:ERR/INFO

SUM

EV84

STA

E-VSS

STA

I;-INFO

EV86
EVS7

STA
STA

I:INFO
I:INFO

L HHHH
L H H Ii L
L HHL H
L HHL L

STO
BPS
ICRSD
BBE

SUM
SUM

S:ERROR·
S:ERROR
S:ERROR
S:ERROR

L HL HH
L HL HL
L HL L H
L HL L L

AKRNE4
AKRNE5
AKRNE6
AKRNE7

SUM

L L HHH
L L HHL
L L HL H
L L HL L
L L L HH
L L L HL
LLLLH
LLLLL

ROSR
ICRMC
NCRMC
BPR
ICRMD
RTO
BPM
MTCE

SUM
SUM
SUM
STA

SUM
SUM

SUM

SUM
SUM
SUM

I:INFO
I:INFO
I:INFO
I:INFO
M:ERROR
M:ERROR
M:ERR/INFO
M/S:ERROR
M:ERROR
M:ERROR
M:ERROR
M:ERROR

Response Lines BCI - (R8<1:0> L)
BCI R8<1:0> L
1 0
H

H
H

L
L

H
L

RESPONSE CODE
DESCRIPTION
NO ACK
ACK
STALL
RETRY

RESULTING
CNF CODE
NO ACK
ACK. NO ACK
STALL. ACK or NO ACK
RETRY, NO ACK

FOR INTERNAL USE ONLY

page 17

SIGNAL ENCODING
REQUEST LINES
BCI RQ<1:0> L

Description
No Request
_
BI Transaction Request
Loopback: Request
Diagnostic Mode

H H

HL
L H

L L

BCI COMMAND CODE TABLE
BCI 1<3:0> H

Mnemonic

Description
(reserved)

LLLL
LLLH
L L HL
L L HH
L HL L
L HL H
L HHL
L HHH
HL L L
HL LH
HL HL
HL HH
HHL L
HHL H
HHHL
HHHH

READ

INTLK READ (CACHE INTENT)
IRC.!
READ WITH CACHE INTENT
RCI
WRITE
WRITE
WCI
WRITE WITH CACHE INTENT
UNLOCK WRITE MASK (CACHE INTENT) UWMCI
. WRITE MASK (CACHE INTENT)
WMCI
INTERRUPT
INTR
IDENT
IDENTIFY
(reserved)
(reserved)
STOP
STOP
INVALIDATE
INVAL
BROADCAST
BOCST
INTERPROCESSOR INTERRUPT
IPINTR

Data Length Codes
BCI 0<31:30> H

DATA LENGTH

MNEMONIC

L L
L H
H L
H H

RESERVED CODE
4 byte (long)
8 byte (quad)
16 byte (octa)

LW
QW
OW

ARB FIELD - bits <5:4> of the BI Control and Status Register
ARB

<5:4>

Meaning

o0
o1

Dual round robin arbitration
Fixed high priority
Fixed low priority
Disable arbitration

1 0
1 1

FOR INTERNAL USE ONLY

page 18

SIGNAL ENCODING
Select Codes
BCI SC<2:0> L
Description
2 1 0
HHH

No command received or not for this node

HHL

A read- or write-type command to the
User CSR Space is received. and the UCSREN
bit in the BCI Control Register is set. or a
read- or write-type command to the BIIC
I
CSR Space for this Node is received and the
BICSREN bit in the BCI Control Register is
set.

HL H

A read- or write-type command to the range of
addresses defined by Starting Address Register
and Ending Address Register is received.

HL L

A read- or write-type command to the range of
addresses defined as "Multicast Space" in the
BI Spec is received. and the MSEN bit in the
BCI Control Register is set.

L HH

An IDENT transaction is received and the IOENTEN
bit in the BCI Control Register is set

L HL

An INTR transaction whose destination matches

this node is received and the INTREN bit
in the BCI Control Register is set. or an
IP INTR transaction whose destination matches
this node and whose source matches the IP
Interrupt Mask Register is received and the
IPINTREN bit in the BCI Control Register
is set.

LLH

An INVAL command. or a write-type command not

directed to the range of addresses defined by
the Starting and Ending Address registers and not
having 0<29> asserted (i.e. not I/O space), is
received. and the INVALEN bit. or the
WINVALEN bit. respectively. is set
in the BCI Control Register.

LLL

A BROADCAST command. or a STOP command. or a
RESERVED command is received, with a destination
matching this node (except for RESERVED commands)
and the BDCSTEN, STOPEN, or RSVDEN bit,
respectively, is set in the BCI Control Register.

FOR INTERNAL USE ONLY

Page 19

MNEMONIC CODES

AAN

ADDR
AN
APS

CIA

All Arbitrating Nodes
Address
All Nodes
All Pending Slave~

CHK
CMD
CNF

Command/Address
Checked
Command
Confermation Lines

DEC'd
DEST
GEN
IA

Decoded
Destination
Generated
Imbedded Arbitration

INTi

Interrupt
Master
both Master and Slave
Reserved

M.S
RES"d
S

STAT
UNDEF

Slave
Slave or Slaves
Status Code
Undefined

Indicates the CNF which occurred for this diagram. the rest of the eNF
codes shown are valid. for this cycle, but if they occUrred, the rest
of the diagram would be different

FOR INTERNAL USE ONLY

BI COMMAND DESCRIPTIONS

page 20

CIA

BI CYCLE

DATAl

DATA2

DATA3

DATA4

31 LENGTH
30 <1:0>
29
28

21
26

DEC'd
ID
LOW
PRIOR

24
23
22

21
20
19
18
11

16 30 BIT

0<31:00> L 15- ADDR

14
13

12
11
10
9

---

DEC'd
ID
HIGH
PRIOR

8
1
6
5

4
3
2
1

.\AN

Source

BI
I<3:0> L

READ I MASTER

READ

STAT
S

READ
STAT
S

READ

CMD
M

STAT
S

14
AN

S
14

Source

BI PO L GEN
CHK

>ACK
>ACK
>ACK >ACK
>ACK
>ACK
NO ACK NO ACK NO ACK NO ACK NO ACK NO ACK
STALL STALL STALL STALL
RETRY
S
S
S
14
S
14

BI
CNF<2:0> L
Source

BI BSY L

M
14
M,S
M,S
M,S _____________ _
\ __________________________________ /

BI NO ARB L /

______ 14,AAN
M,S
M,S
M,S _____________ _
\ ___________________________ 1

READ-type TRANSACTION FORMAT (Octaword length shown)

FOR INTERNAL USE ONLY

page 21

BI COMMAND DESCRIPTIONS

CIA

BI CYCLE

311
30 LENGT.H
<1:0> 1
29 - - 28
27
26

I I I I I

DEC'd,1

24
23
22
21
20

ID
LOW
PRIOR

19
18
17
BI
16 30 BIT
0<31:00> L 15 ADDR

DATAl

DATA2

DATA3

DATA4

13
12
11

10
DEC'd
ID
HIGH
PRIOR

8
7

6
5

4
3
2
1

o
Source

BI
I<3:0> L
Source

AAN

WRITE MASTER UNDEF UNDEF UNDEF UNDEF I
CMD
ID FIELD FIELD FIELD FIELD
M
M
M
M
M
M

BI PO L GEN

CHK

BI
CNF<2:0> L

M
S

>ACK >ACK >ACK
>ACK
>ACK >ACK
NO ACK NO ACK NO ACK NO ACK NO ACK NO ACK
STALL STALL STALL STALL
RETRY
S
S
S
S
S
S

Source
M

M.S

_____________ _

BI BSY L

\_--------------------------- ______1
______ M,AAN
M.S
M.S
M,S _____________ _
BI NO ARB L I
\ ___________________________ 1

WRITE and WCI TRANSACTION FORMAT (Octaword Length Shown)

FOR INTERNAL USE ONLY

BI COMMAND DESCRIPTIONS

page 22

CIA

8I CYCLE

31 LENGTH
30 <1:0>
29
28
27
26
OEC'd
25
24
ID
23
LOW
•PRIOR
22
21
20
19
18
17
16 30 BIT
BI
0<31:00> L 15 ADOR
DATAl
14
13
12
11
10
9
8

HIGH

.
I

I
DATA2

DATA3

DATA4

II
I

IPRIOR !

6
5

DEC'd
I 10 !

3
2
1
0

Source
BI
1<3:0> L
Source
BI PO L GEN
CHK

;

!
M

AAN

WRITE MASTER WRITE
CMD
MASK
ID
M
M
·M
M
AN

M
S

WRITE WRITE WRITE
MASK MASK MASK
M
M
M
M
S

M
S

>ACK >ACK >ACK
>ACK
>ACK
>ACK
NO ACK NO ACK NO ACK NO ACK NO ACK NO ACK
STALL STALL STALL STALL
RETRY
S
S
S
S
S
S

BI
CNF<2:0> L
Source
M

M.S

M,S

_____________ _

BI BSY L

\_--------------------------- ______ 1
______ M,AAN
M,S
M,S
M.S _____________ _
BI NO ARB L /
\ ___________________________ 1
WMCI and UWMCI TRANSACTION FORMAT (Octaword)

FOR INTERNAL USE ONLY

page 23

BI COMMAND DESCRIPTIONS
INTR
BI CYCLE

CIA
31
30

I I I I I

29 1
28

27
26

ARB VECTOR VECTOR

DMID

IRESV'd

25 FIELD
24

23
22
21
20

DEC'd DEC'd DEC'd
UNDEF
MASTER ID
ID
LOW
ID ARB~ng FIELD
PRIOR
SLAVEs

O's

19
18 IDENT

17 LEVEL

BI
16
D<31:00> L 15
14

13
12
11

10
DEC'd
9
8 RESV"d ID
7 FIELD
6

RESV"d RESV"d UNDEF VECTOR
HIGH FIELD FIELD FIELD
PRIOR

4
3
2
1

O's

o
Source

BI
I<3:0> L
Source

BI PO L GEN
CHK

AAN

APS

IDENT MASTER RESV'd RESV'd UNDEF VECTOR
CMD
ID FIELD FIELD FIELD STATUS
M
M
M
M
S
S
M
AN

M
AN

M
APS

RESV'd. S
FIELD
M

BI
CNF<2:0> L

S
M

. ACK
>ACK >ACK >ACK
NO ACK NO ACK NO ACK NO ACK
>STALL STALL
RETRY RETRY

Source

M,S

_____________ _

BI BSY L

\_--------------------------- ______ 1
______ M,AAN
M,S
M,S
S _____________ _
I
\
___________________________
1
BI NO ARB L

IDENT TRANSACTION FORMAT

FOR INTERNAL USE ONLY

BI COMMAND DESCRIPTIONS

page 24

CIA

BI CYCLE

31
30
29
28
27
26 RESV'd

25 FIELD OEC'd
IO
24
LOW
23
PRIOR
22
21
20
19
18
17

INTR
LEVEL

BI
16
0<31:00> L 15

RESV'd

FIELD

13
12
11
10

INTR DEC'd
DEST
ID
MASK HIGH
PRIOR

9
·8

7
6

5
4
3

2
1

o
AAN

Source

BI
I<3:0> L

INTR MASTER RESV"d
CMD
ID FIELD

Source

BI PO L GEN
CHK

BI
CNF<2:0> L
Source

BI BSY L

RESV"d
FIELD
>ACK
NO ACK
Sa

M
M
______ _
\_------______ 1

______ M.AAN ______ _
BI NO ARB L I
\ ______ 1
INTR TRANSACTION FORMAT

FOR INTERNAL USE. ONLY

BI COMMAND DESCRIPTIONS

page 25

BI CYCLE

CIA

I II

29
28 1

21
26
25 MASTER OEC'd
IO
24 OEC'd

23
22

LOW
PRIOR

20
19
18
17

RESV"d

0<31:00> L 15

F~ELO

13
12
11

IP OEC'd
INTR· IO
OEST HIGH
MASK PRIOR

9
8
7
6
5
4

3
2
1

o
Source

AAN

IPINTR MASTER RESV'd
CMO
IO FIELD

BI
I<3:0> L
Source

BI PO L GEN
CHK

M
AN

RESV'd
FIELO
>ACK

BI
CNF<2:0> L
Source

BI aSY L

M
M
______ _
\_------ ______ 1

BI NO ARB L I

______ M,AAN ______ _
\ ______ 1

IPINTR TRANSACTION FORMAT

FOR INTERNAL USE ONLY

BI COMMAND DESCRIPTIONS

CIA

BI CYCLE

D3 ., ... 04
'"

'0,;

'~".".

31 LENGTH
30 <1:0>

29
28

21
26

OEC'd
25
24
ID
23 RESV'd LOW
22 FIELD PRIOR
21
20

19
18

17
BI
16
D<31:00> L 15
14
13
12

DATAl

DATA2

DATA3

DATA4

10
DEC'd
BDCST ID
MASK HIGH
PRIOR

9
8
7
6
5
4
3
2

o
Source

BI
I<3:0> L

BDCST MASTER WRITE
CMD
MASK
ID
M
M
M

WRITE
MASK
M

WRITE
MASK

M
Sa

Source

BI PO L GEN
CHK

AAN

So~ce

BI NO ARB

>ACK >ACK
>ACK
>ACK
>ACK
>ACK
NO ACK NO ACK NO ACK NO ACK NO ACK NO ACK

BI
CNF<2:0> L

BI BSY L

____________________ _

\_--------------------------- ______ 1
______ M,AAN
M
M
M
____________________ _

L /

\_--------------------______ 1

BROADCAST TRANSACTION FORMAT

FOR INTERNAL USE ONLY

BI COMMAND DESCRIPTIONS

page 27

CIA

BI CYCLE

31
30
29
28 1

21
26

DEC'd
25
24 RESV'd ID
23 FIELD
LOW
PRIOR
22
21

20
19
18

_16
0<31:00> iL-1S

RESV'd
FIELD

14
13

12
11

-9
8
7
6
5
4
3
2
1

DEC'd
DEST ID
MASK HlGH
PRIOR

Source

BI
I<3:0> L
Source

STOP
CMD
M

BI PO L GEN
CHK

M
AN

AAN
MASTER RESV'd
ID FIELD
M
M
AN

RESV'd
FIELD
>ACK
NO ACK

BI
CNF<2:0> L

Source

M
BI BSY L

______ _

\_------ ______1

BI NO ARB L I

______ M,AAN ______ _
\ ______ 1

STOP TRANSACTION FORMAT

FOR INTERNAL USE ONLY

HI COMMAND DESCRIPTIONS

page 28

CIA

BI -CYCLE

31 LENGTH

<1:0>

29
28
27
26

DEC"d
IO
LOW
PRIOR

25
24

23
22
21

19
18

:
i

BI
16 30 BIT
'0<31:00> L 15 ADOR

RESV"d

FIELD

14
13

12
11

10
9
8

DEC"d
10

• HIGH
PRIOR

6
5
4:
3
2
1

o
Source

AAN

INVAL MASTER RESV"d
CMD
ID FIELD
M
M

BI
I<3:0> L
Source

BI PO L GEN

CHK

BI
CNF<2:0> L

M
AN

RESV"d
-FIELD
>ACK
NO ACK
Sa

Source

BI BSY L

M
M ______ _
\_------______ 1

______ M,AAN ______ _
BI NO ARB L I
\ ______ 1
INVALIDATE TRANSACTION FORMAT

FOR INTERNAL USE ONLY

page 29

BI COMMAND DESCRIPTIONS
BI CYCLE

CIA

.....

31 LENGTH.
30 <1:0>
29
28

21
26

25
24

, DEC'd
IO
LOW
PRIOR

23
22
21
20

19
18

,
:

UNOEF
FIELD

16 30 BIT:
ADOR

D<31:00> L 15
14
13
12
11
10

DEC'd
ID
HIGH
PRIOR

9
8
7

6
5
4
3
2
1

..
.;

o
Source

BI
I<3:0> L
Source

BI PO L GEN
CHK
BI
CNF<2:0> L'

AAN

INVAL MASTER UNDEF
CMO
10
FIELD
M

UNDEF
FIELD
ACK
>NOACK
STALL
RETRY

Source

M
M
M
______ _
BI BSY L
\_------------- ______ 1
______ M,AAN
M
______ _
I
\
_____________
1
BI NO ARB L

QUAOWORO READ WITH NOACK RESPONSE

FOR INTERNAL USE ONLY

BI COMMAND OESCRIPTIONS
BI CYCLE

page'"'jt}·

CIA

STALL

3 1 LENGTH
30 <1:0>
29
28
27
26
DEC'"d'
25
ID
24

LOW
PRIOR

22
21
20
19
18
17

BI
16 30 BIT
0<31:00> L 15 ADOR
14
13
12
11
109
8
7

UNDEF DATA!
FIELD

DATA2;

DEC'd
ID
HIGH

PRIOR

6
5
4

3
2
1
0

Source

!AN

BI
1<3:0> L

READ

Source

MASTER UNDEF
ID FIELD
M
S

READ

CND

STAT
S

BI PO L GEN
CHK

AN ,

S
M

ACK
>ACK >ACK >ACK >ACK
NO ACK1NO ACK NO ACK NO ACK NO ACK
>STALL STALL STALL
RETRY RETRY
S
S
M
S
M

BI
CNF<2:0> L
Source

.
M

BI BSY L

M,S

_____________ _

\_--------------------------_/

BI NO ARB L I

______

M,S
S
_____________ _
\ _____________________ 1
-M~AAN

QUADWORD READ TRANSACTION WITH STALL

FOR INTERNAL USE ONLY

page _3l~.

BI C~~'S'pESCRIPTIONS
BI CYCLE

CIA

IDEC'd

31
30 LENGTH
<1:0>
29--

I II I I

21
26

25
24

LOW
PRIOR

23
22
21
20
19
18
11

16 30 BIT
D<31:00> L 15 ADDR

.DATAl DATAl

14
13
12

10
9

DEC'd

8
7
6
5

HIGH
PRIOR

10-

3I
2

o
Source

AAN

M
..

WRITE MASTER UNDEF UNDEF
CMD
ID FIELD FIELD

1<3:0> L
Source

BI PO L GEN

CHK

ACK '.1
i
>STALL STALL I

CNF<'}.':O> L

A",n. llO ACK,

SiS
M

M,S

\---------------___________________ 1

BI NO ARB L I
DCTAWORD

RETRY I >RETRY 'I

Source

BI BSY L

ACt<,..,

I llO

______ M,AAN
M,S
M
M
\ ___________________________ 1
WRITE TRANSACTION STALLED, THEN RETRIEQ

FOR INTERNAL USE ONLY

SI COMMAND O~~RIPTIONS

page 32

CIA

f31 .LENGTH

CIA
LENGTH
<1:0>

30- <1:0>
29

\26"

DECPdI'

ID'
LOW
PR!ft

23
22

\E1P

OEC"d
ID
LOW
PRIOR

~! BITI

,'~

BI
0<31:00> L

ADDR

DATAl

~ {

30 BIT
ADDR

DATAl

11/

~
~

OEt"d
10
IHlUH
IPIIOR

;

Source

Qltjd
ID
HIGH
PRIOR

.• M2

-*~1

AAN

BI
I<3:0> L

WRITE MASTER WDEP . w'R"ITEi MASTER UNDEF
.Iff . F'fELD· :.iCMD:. ID FIELD
CMD
'" '141 .- M2" i
Nl • .:1-Mi'
M2
M2
..

Source

BI PO L GE ~

Ml
AN

CHIC

rH1
;AN
.

M2 :.
AN

M2
AN

M2
S2

BI
CNF<2:0> L

>ACK >ACK >ACK >ACK >ACK >ACK
NO ACK ~O ACK NO ACK NO ACK NO ACK NO ACK
STALL
STALL
RETRY
RETRY
Sl
S1
81
82
S2
S2

Source

*1;;
BI BSY L

, .?~1
S1

M2
M2 ____________________ _
\_------______ 1

.Ml

\_-~----- ______ I
L.~--~--

HI NO ARB L '

M1,AAN

\ _____________ 1

______

M2.ANN ____________________ _
\ _______ 1

TWO L9NQ.~O~.~TE TRANSACTIONS WITH SECOND WRITE ARSING IN IMBEDED ARB

FOR INTERNAL USE ONLY

·VAXBI Troubleshooting Flow Chart

SELF TEST PASS

RUN MACROS

FOR INTERNAL USE ONLY

Digital Equipment Corporation • Bedford, MA 01730