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8355 N/B MAINTENANCE
8355 N/B MAINTENANCE
62
Continued to the previous table
Port 9 TTL input voltage (input high min=2v, input low max=0.8v)
P90/IRQ2/ESC2 25 PORT90
T↑
I/O I/O I/O Keep
P91/IRQ1/EIOW 24 PORT91
T↑
I/O I/O I/O Keep
P92/IRQ0 23 H8/T CLK
T↑
I/O I/O I/O Keep need pull high
P93/RD 22 RSMRST
T↑
I/O I/O I/O Keep
P94/WR 19 RESERVE
T↑
I/O I/O I/O Keep need pull high
P95/AS 18 T DATA
T↑
I/O I/O I/O Keep need pull high
P96/0 17 H8_ENABKL
T↑
I I I T Read H8 send A20gate status
P97/WAIT/SDA 16 BAT DATA
T↑
I/O I/O I/O Keep SM BUS clock need pull high
5→3V
↑ Pull High
↓ Pull Low
5→3V Level shift