Digital PDFs

XX-D3EE4-7F

May 2000

1 pages

Original

10.9kB

Document:	RX interface
Order Number:	XX-D3EE4-7F
Revision:
Pages:	1
Original Filename:	RX_interface.pdf

OCR Text

RX02 Emulator Interface
RX INIT CLEAR PC L

+5V

1.2k
NOTE: Interface symbols with alphabetic
designations indicate connections to the
PDP interface. Numeric designations indicate
connections to the PC interface.
Signal names with PC before the level
indicate signals attached to the PC.

9 (D7)

180

CLR

CLK

RX INIT PC H
12 (S5)

PRE

+5V

RX INIT L

1
2

7474

N (29)
390

+5V

180
RX RUN L
D (37)

390

RX 12BIT L

+5V

180
FF (13)

RX DATA L

390

YA1 18

YA2 16

YA3 14

YA4 12

11 B1

YB4 9

15 (S3)
RX DATA IN PC L

13 B2

YB1 7

13 (S4)

15 B3

YB2 5

17 B4

+5V

180

74244
2

BB (17)

30
RX RUN PC L
11 (S7)
RX 12BIT PC L

YB3 3

390

+5V

RX DATA OUT PC H

+5V

180
1.2k

RX AC LO L
TT (3)

1 (C0)

RX DMA L

7400

VV (1)

RX DMA L
x
DMA has not been assigned a PC pin.

74LS38

1.2k
RX TRANSFER REQUEST PC H

390
180

+5V

74LS74

7400

+5V

J (33)

IC CHART
74LS244

RX ERROR L

2 (D0)

180

+5V

1.2k
RX ERROR PC H

RX TRANSFER REQUEST L

3 (D1)

T (25)

5
7400

actual chip used.

1.2k
RX DONE PC H

390
180

+5V

74LS38
+5V

Symbol desciptions may not match

RX DONE L

4 (D2)

X (21)

10
7400

390
180

+5V

RX SHIFT PC H

RX SHIFT L

5 (D3)

LL (9)

date: 06/11/2003

7400

rev: B
RX OUT PC H
6 (D4)

+5V

1.2k
4

390
180

+5V

design by: Charles H Dickman

+5V

1.2k

RX OUT L

RR (5)

5
7400

390