IPC@CHIP Documentation - SC12 @CHIP-RTOS V1.10

Parameters
AH
DX
BX
CX
Must be 0x83.
data applied to PIO[0..13]
where DX bit 0 maps to PIO[0]
and DX bit 13 maps to PIO[13]
wAND
wXOR
Return Value
none
Comments
& = bit wise AND
^ = bit wise XOR
Before the value is written, the value is combined with the wAND and wXOR parameters as:
PIO[0..13] = (data & wAND) ^ wXOR
To write value in DX to the programmable I/O pins without change, set wAND=0xFFFF and
wXOR=0x0000.
Only PIO pins that are defined as outputs can be written.
Related Topics
Top of list
Index page
Write Specific I/O Pin
Read Programmable I/O Pins
PFE: Enable Programmable I/O Pins
Interrupt 0xA1 service 0x84: HAL: Install Interrupt Service Routine
Parameters
AH
DH
Install user interrupt service routine to be invoked by system interrupt handler.
Must be 0x84.
Bit mask for the ISR type:
BIT0..6 must be 0
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