APPENDIX B Connectors

▌B.2

IEEE1284 Parallel I/F

 

 

PARALLEL

 

 

Interface connector

Drawer kick-out

 

Connector

 

 

▌B.2.1 IEEE 1284 Parallel I/F signal specifications (Compatibility / Nibble / Byte mode)

Pin no.

Source

Compatibility mode

Nibble mode

Byte mode

1

Host

nStrobe

HostClk

HostClk

 

 

 

 

 

2

Host / Printer

Data 0 (LSB)

-

Data 0 (LSB)

3

Host / Printer

Data 1

-

Data 1

 

 

 

 

 

4

Host / Printer

Data 2

-

Data 2

 

 

 

 

 

5

Host / Printer

Data 3

-

Data 3

6

Host / Printer

Data 4

-

Data 4

 

 

 

 

 

7

Host / Printer

Data 5

-

Data 5

 

 

 

 

 

8

Host / Printer

Data 6

-

Data 6

 

 

 

 

 

9

Host / Printer

Data 7 (MSB)

-

Data 7 (MSB)

10

Printer

nAck

PtrClk

PtrClk

11

Printer

Busy

PtrBusy / Data3,7

PtrBusy

 

 

 

 

 

12

Printer

Perror

AckDataReq / Data2,6

AckDataReq

 

 

 

 

 

13

Printer

Select

Xflag / Data1,5

Xflag

 

 

 

 

 

14

Host

nAutoFd

HostBusy

HostBusy

15

-

NC

ND

ND

16

-

GND

GND

GND

 

 

 

 

 

17

-

GND

FG

FG

 

 

 

 

 

18

Printer

Logic-H

Logic-H

Logic-H

19~30

-

GND

GND

GND

31

Host

nInit

nInit

nInit

 

 

 

 

 

32

Printer

nFault

nDataAbail /

nDataAvail

 

 

 

 

 

33

-

NC

ND

ND

 

 

 

 

 

34

Printer

NC

ND

ND

 

 

 

 

 

35

Printer

NC

ND

ND

 

 

 

 

 

36

Host

nSelectln

1284-Active

1284-Active

B-2

Page 98
Image 98
Samsung SRP275APG user manual IEEE1284 Parallel I/F, Pin no Source Compatibility mode Nibble mode Byte mode