Contec IPC Series User Manual page 25

Temp = Read_EC_SRAM(GPDR);
// Set GPO4 Output & High
Temp = Read_EC_SRAM(GPDR);
Write_EC_SRAM(GPDR,Temp|0x80);
}
GSPI-Q3700-LLVA User's Manual
//Bit3-0: GPI3-0 status
//Bit7-4: Set GPO3-0 status, 0: Low 1: High
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