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3.24 Expansion Slot
The 2807960 offers one Type III mini PCI slot at CN16, one x1 PCI-E
slot at CON1, one standard PCI slot at PCI1.
3.25 8-bit I/O Function
The 2807960 offers one 8-bit input/output port by parallel port.
NOTE:
If you want to use 8-bit I/O, parallel port function will be disabled.
JP17: 8-bit Input/Output
PIN Description PIN Description
1
VCC
3
GD0
5
GD1
7
GD2
9
GD3
.286
.MODEL SMALL
.DATA
port
equ
.CODE
print
macro
mov
mov
int
endm
delay :
push
mov
@@:
jmp
push
mov
wait1: loop
pop
loop
pop
ret
begin
proc
mov
mov
STI
2
GND
4
GD4
6
GD5
8
GD6
10
GD7
;this is data area
0378h
;print port can be change to 278h
buff
dx, offset buff;
ah,09h
21h
cx
cx,0155h
$+2
cx
cx,0ffffh
wait1
cx
@b
cx
near
ax,@data
ds,ax
9
1
10
2
25
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