7I90HD 9
CONNECTORS
EPP/SPI CONNECTOR
P4 is the EPP printer port / SPI host interface connector. P4 is a 26 pin header. P4's
pin-out matches stands DB25 printer port pin-out, allowing a simple flat cable with a
DB25M IDC connector on one end and a 26 pin female header on the other end to
interface the hosts printer port to the 7I90HD.
P4 PIN DB25 PIN SIGNAL P4 PIN DB25 PIN SIGNAL
1 1 /STROBE 2 14 /AUTOFD
3 2 PD0 4 15 /FAULT
5 3 PD1 6 16 /INIT
7 4 PD2 8 17 /SELECTIN
9 5 PD3 10 18 GND
11 6 PD4 - SPICLK 12 19 GND
13 7 PD5 - SPIIN 14 20 GND
15 8 PD6 - SPIOUT 16 21 GND
17 9 PD7 - /SPICS 18 22 GND
19 10 /ACK 20 23 GND
21 11 BUSY 22 24 GND
23 12 PERROR 24 25 GND
25 13 SELECT 26 VCC
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