CJB WEX-QM871, User Manual, Page: 86 / 90

86
// Enter Extended Function Mode
outp(0x2E, 0x87);
outp(0x2E, 0x87);
// Select Logic Device 7
outp(0x2E, 0x07);
outp(0x2F, 0x07);
// Select & Enable GPIO1
outp(0x2E, 0x27);
outp(0x2F, inp(0x2F) | 0x05);
// Assign Pin 70 to be a WDTO# Signal
outp(0x2E, 0x2C);
outp(0x2F, inp(0x2F) & 0xDF);
//Clear WDTO# Status
outp(0x2E, 0xF5);
outp(0x2F, inp(0x2F) | 0x40);
// Select time unit (Second )
outp(0x2E, 0xF5);
outp(0x2F, inp(0x2F) & Count-mode Register);
// Select time unit (Minute)
outp(0x2E, 0xF5);
outp(0x2F, inp(0x2F) | Count-mode Register);
// Set Time-out Value
outp(0x2E, 0xF6);
outp(0x2F, Time-out Value Register );
// Counting of watch dog time is enable.
outp(0x2E, 0xF5);
outp(0x2F, inp(0x2F) | 0x20);
// Exit Extended Function Mode
outp(0x2E, 0xAA);