8170 N/B MAINTENANCE
7.3Debug Card
7.3.2CIRCUIT:PIOCONNECTORLED
25
14
13 
1
PIN DEFINITION OF PIO PORT
PIN 1 | STB | STROBE SIGNAL | PIN 14 | AFD | AUTO LINE FEED |
PIN | D0 - D7 | PARALLEL PORT DATA BUS D0 TO D7 | PIN15 | ERR | ERROR AT PRINTER |
PIN10 | ACK | ACKNOWLEDGE HANDSHANK | PIN16 | INIT | INITIATE OUTPUT |
PIN11 | BUSY | BUSY SIGNAL | PIN17 | SLIN | PRINTER SELECT |
PIN12 | PE | PAPER END | SIGNAL |
| |
PIN13 | SLCT | PRINTER SELECTED | GROUND |
| |
|
|
141