CyberResearch STH 15B Series, Руководство пользователя

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User Manual version 4.11
STH 15B Series
9-112
B: Digital I / O
The System also equipped with a digital I/O that provide 2
digital in and digital out TTL level interface, easy to
programming the external control board.
For example ----- POS machine’s cash-drawer Game
machine’s Coin insert detection
.
.
.
The following is the Digital I/O instruction:
Digital in :
IOR 440(Hex)
Bit 0 & Bit 1 valid data (The two signals normally pull low)
Digital out :
IOW 440(Hex), Data
Bit 0 & Bit 1 valid data (The two signals normally pull low)