Toshiba B-SX4T ユーザーズマニュアル

APPENDIX 2 INTERFACE

ENGLISH VERSION EO1-33058

APPENDIX 2 INTERFACE

EA2- 1

APPENDIX 2 INTERFACE

Parallel interface (Centronics) (Standard)

Mode:

Conforming to IEEE1284
Compatible mode (SPP mode), Nibble mode, ECP mode

Data input method: 8 bit parallel
Control signal:

Data input code:

ASCII code
European 8 bit code
Graphic 8 bit code
JIS8 code
Shift JIS Kanji code
JIS Kanji code

Receive buffer:

1M byte

SPP Mode

Nibble Mode ECP

Mode

nStrobe HostClk HostClk
nAck PtrClk PeriphClk
Busy PtrBusy PeriphAck
Perror AckDataReq

NAckReverse

Select Xflag

Xflag

nAutoFd HostBusy HostAck
nInit nInit nReverseRequest
nFault nDataAvail

nPeriphRequest

nSelectIn IEEE1284Active

IEEE1284Active

NOTE:
To prevent radiation and reception of electrical noise, the interface cables must meet the following requirements:

• In case of a parallel interface cable or serial interface cable, fully shielded and fitted with metal or metallised

connector housings.

• Keep as short as possible.
• Should not be bundled tightly with power cords.

• Should not be tied to power line conduits.
• A parallel interface cable to be used should conform to IEEE1284.