Boser HS-2613, Manual

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24
3.22 8-bit I/O Function
The HS-2613 offers one 8-bit input/output port by parallel port.
CN19: 8-bit Input/Output
PIN Description PIN Description
1 VCC 2 GND
3 GD0 4 GD4
5 GD1 6 GD5
7 GD2 8 GD6
9 GD3 10 GD7
1 9
10 2
.286
.MODEL SMALL
.DATA ;this is data area
port equ 0378h ;print port can be change to 278h
.CODE
print macro buff
mov dx, offset buff;
mov ah,09h
int 21h
endm
delay :
push cx
mov cx,0155h
@@:
jmp $+2
push cx
mov cx,0ffffh
wait1: loop wait1
pop cx
loop @b
pop cx
ret
begin proc near
mov ax,@data
mov ds,ax
STI
Mov dx, port
Mov al, 80h out dx, al
;;--------------------
;;ROR
mov cx, 08h
@@: