Power Off Smart Card; Exchange Message - Unitech MR350 MKII Software Manual

2.3 Power off Smart Card

Entry parameter
INT 06H
AH = 2

2.4 Exchange message

This function is used to send or receive data between MR350MKII and Smart Card
Entry parameter
INT 06H
AH = 3
DS:SI= buffer
CW = length
ES:DI=buffer
Return value
AH = 0
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; POWER OFF Smart Card
;SEND COMMAND TO Smart Card
; pointer of exchange command buffer(output)
; Length of message excahnge buffer
; pointer of return message (input)
; SUCCESS
If AH=0 CX=length of return message
; timeout and deactive Smart Card
; No card present deactive Smart Card
; EDC error
; Data not stable
; Parity check error
; Other error & deactive Smart Card
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