R32V2020 I/O Latch

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  • This is an 8-bit latch
  • The 8-bits go to I/O pins on the card

Sample Code

;
; writeDIGIO
; Write the DIGIO output lines
; value to write is passed in r8
;

writeDIGIO:
	push	PAR
	lix	PAR,0x5000	; 8-bit Digital Output port
	spl	r8			; Output bit
	pull	PAR
	pull	PC