12.3 Parallel Interface

12.3 Parallel Interface

Parallel interface

The Parallel interface is based upon IEEE1284. For details of the signal line configuration and electrical standard, refer to the IEEE1284 specifications. Besides the hardware verification mentioned above, the control codes (e.g., Chinese-character code and ESC sequence) supported by the connected system must be checked before attempting to use the interface.

In the GP7000F, "Compatible," "Nibble" and "Byte" modes are supported. "ECP (Extended

Capabilities Port)" to "EPP (Enhanced Parallel Port)" modes are not supported as yet.

Terminal Distribution

IEEE1284-A from among IEEE1284 terminal distribution schemes is shown below. The following table shows the pin numbers, sources and signal names. Sources identify the communicating status, e.g., [from Host (H)], [from terminal (P)], and [bidirectional (Bi-Di)] (can be sent either from the host or terminal equipment). The signal names identify those supported in the respective modes. For the connecting information regarding the cables types, refer to the IEEE1284 specifications.

Table 12.6 IEEE1284-A Connector Terminal Distribution

Pin #

Source

Compatible

Nibble

Byte

 

 

 

 

 

1

H

NStrobe

HostClk

 

 

 

 

 

 

2

Bi-Di*

Data 1 (Least Significant Bit)

 

 

 

 

 

 

3

Bi-Di*

Data 2

 

 

 

 

 

 

 

4

Bi-Di*

Data 3

 

 

 

 

 

 

 

5

Bi-Di*

Data 4

 

 

 

 

 

 

 

6

Bi-Di*

Data 5

 

 

 

 

 

 

 

7

Bi-Di*

Data 6

 

 

 

 

 

 

 

8

Bi-Di*

Data 7

 

 

 

 

 

 

9

Bi-Di*

Data 8 (Most Significant Bit)

 

 

 

 

 

 

10

P

NAck

PtrClk

 

 

 

 

 

 

11

P

Busy

PtrBusy

 

 

 

 

 

 

12

P

Perror

AckDataReq

 

 

 

 

 

 

13

P

Select

Xflag

 

 

 

 

 

 

14

P

NAutoFd

HostBusy

 

 

 

 

 

 

151

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Fujitsu M200R, M600R, GranPower7000 (GP 7000F) Parallel Interface, 151, IEEE1284-A Connector Terminal Distribution

M200, M400A, GranPower7000 (GP 7000F), M400R, M600 specifications

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