mitac 8355.pdf - tim.id.au

Continued to the previous table
Port 2 TTL input voltage (input high min=2v, input low max=0.8v)
8355 N/B MAINTENANCE
P20/A8 67 KB OUT8 L O L O LH O Keep L Key matrix scan output 8
P21/A9 66 KB OUT9 L O L O LH O Keep L Key matrix scan output 9
P22/A10 65 KB OUT10 L O L O LH O Keep L Key matrix scan output 10
P23/A11 64 KB OUT11 L O 0 O LH O Keep L Key matrix scan output 11
P24/A12 63 KB OUT12 L O 0 O LH O Keep L Key matrix scan output 12
P25/A13 62 KB OUT13 L O 0 O LH O Keep L Key matrix scan output 13
P26/A14 61 KB OUT14 L O 0 O LH O Keep L Key matrix scan output 14
P27/A15 60 KB OUT15 L O 0 O LH O Keep L Key matrix scan output 15
Port 3 TTL input voltage (input high min=2v, input low max=0.8v)
P30/HDB0/D0 82 ISA SD0 T I/O I/O I/O Keep ISA DATA bit 0
P31/HDB1/D1 83 ISA SD1 T I/O I/O I/O Keep ISA DATA bit 1
P32/HDB2/D2 84 ISA SD2 T I/O I/O I/O Keep ISA DATA bit 2
P33/HDB3/D3 85 ISA SD3 T I/O I/O I/O Keep ISA DATA bit 3
P34/HDB4/D4 86 ISA SD4 T I/O I/O I/O Keep ISA DATA bit 4
P35/HDB5/D5 87 ISA SD5 T I/O I/O I/O Keep ISA DATA bit 5
P36/HDB6/D6 88 ISA SD6 T I/O I/O I/O Keep ISA DATA bit 6
P37/HDB7/D7 89 ISA SD7 T I/O I/O I/O Keep ISA DATA bit 7
Port 4 TTL input voltage (input high min=2v, input low max=0.8v)
P40/TMCI0 49 H8 PWRON T↓ O L O LH O Keep System power on, need pull down to define
initial state during reset
P41/TMO0 50 H8 THRM# T O L O H O Keep H Thermal throttling control to Southbridge
P42/TMRI0 51 SCI#/
FAN SPD SW
P43/TMCI1/HIRQ1 52 SCI#/
FAN SPEED
T O H O Keep SCI output and Fan Speed Tachometer
Switch
T O/I O O Keep Need invert to SCI# sending to SB
5→3V/ Fan speed tachometer
P44/TMCO1/HIRQ1 53 ISA IRQ1 T O 0 O O Keep Keyboard IRQ1
P45/TMRI1/HIRQ1 54 ISA IRQ12 T O 0 O O Keep PS2 mouse IRQ12
P46/PWM0 55 FAN ON#0 T O 1 O O Keep Fan power PWM control
P47/PWM1 56 FAN ON#1 T O 1 O O Keep Fan power PWM control
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