MiTAC 8355 用户手册
8355 N/B MAINTENANCE
8355 N/B MAINTENANCE
61
Continued to the previous table
Port 5 TTL input voltage (input high min=2v, input low max=0.8v)
P50/TXD0
14
LED DATA
T
O
O
O
Keep
LED indicator shift data
P51/RXD0 13
H8
SMI# T
O
O O
Keep
External SMI#
5→3V
P52/SCK0
12
LED CLK
T
O
O
O
Keep
LED indicator shift clock
Port 6 Schmitt trigger input voltage (min=1.0v max=3.5v)
P60/KEYIN0/FTCI 26 KEY
IN0
T↑
I
I
I
Keep
Key matrix input 0 need pull high
P61/KEYIN1/FTOA 27 KEY
IN1
T
↑
I
I
I
Keep
Key matrix input 1 need pull high
P62/KEYIN2/FTIA 28 KEY
IN2
T
↑
I
I
I
Keep
Key matrix input 2 need pull high
P63/KEYIN3/FTIB 29 KEY
IN3
T
↑
I
I
I
Keep
Key matrix input 3 need pull high
P64/KEYIN4/FTIC 32 KEY
IN4
T
↑
I
I
I
Keep
Key matrix input 4 need pull high
P65/KEYIN5/FTID 33 KEY
IN5
T
↑
I
I
I
Keep
Key matrix input 5 need pull high
P66/KEYIN6/IRQ6 34 KEY
IN6
T
↑
I
I
I
Keep
Key matrix input 6 need pull high
P67/KEYIN7/IRQ7 35 KEY
IN7
T
↑
I
I
I
Keep
Key matrix input 7 need pull high
Port 7 TTL input voltage (input high min=2v, input low max=0.8v)
P70/AN0
38
BAT VOLT1
T
I
I
I
T
Battery voltage measure
P71/AN1 39
I_LIMIT
T I
I
I
T
P72/AN2 40
H8_I_DISCHG
T
I
I
I
T
Monitor system on/off state
P73/AN3 41
H8_I_CHG
T I
I
I
T
P74/AN4
42
BAT TEMP1
T
I
I
I
T
Battery thermister temperature
P75/AN5 43
VCC CORE
T I
I
I
T
P76/AN6/DA0
44
H8_I_CTR
T
O
O
O
T
Charging current adjust
P77/AN7/DA1
45
BL ADJ
T
O
O
O
T
Backlight inverter brightness adjust
Port 8 TTL input voltage (input high min=2v, input low max=0.8v)
P80/HA0 93
ISA
SA2 T
I
I
I
Keep
P81/GA20 94
RESERVE
T O
O
O
Keep
P82/CS1
95
H8 KBCS#
T
I
I
I
Keep
IO port 60/64 chip select
P83/IOR
96
ISA IOR#
T
I
I
I
Keep
ISA I/O read#
P84/IRQ2/TXD1
97
ISA IOW#
T
I
I
I
Keep
ISA I/O write
P85/IRQ4/RXD1
98
H8 MCCS#
T
I
I
I
Keep
IO port 62/66 chip select
P86/IRQ5/
SCK1
99
BAT
CLK
T
↑
I/O
I/O
I/O
Keep
SM BUS clock need pull high
5→3V