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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