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8355 N/B MAINTENANCE
8355 N/B MAINTENANCE
58
1.7 Appendix 2: H8 Pins Definition
Hitachi H8 3437S to VT8235 pin function definitions for Insyde code
the shadowed block is the selected function
Name Pin H8 Pin Definitions During
RESE
T
After
RESET/O
FF
ON STANDBY Function
MD0 6 H8_MODE0
I
↑
I H I H I H
MD1 5 H8_MODE1
I
↑
I H I H I H
H
H mode3 single chip mode
STBY# 8 H8_STBY#
I
↑
I H I H I H H8 Hardware Standby input pull high
NMI# 7 PWRBTN#
I
↑
I H I HLH I H Power button
RESET# 1 H8_RESET# I I LH I H I H H8 chip reset
XTAL 2 Crystal I I I I
EXTAL 3 Crystal I I I I
Crystal input
RESET OUT# 100 RESERVE O O O O
Port A CMOS input level (input high min=3.5v, input low max=1.0v)
PA0 48 LID#
T
↑
I H I I H
PA1 47 ADEN#
T
↑
I H/L I I H/L AC adaptor in detect
PA2 31 CARD_RI#
T
↑
I H I I H Ring detect
PA3 30 BATT DEAD#
T
↑
I H I I H Battery low low detect
PA4 21 H8 SUSC
T
↑
I H I I L System resume from S4 soft off through
RTC Alarm
PA5 20 H8 SUSC#
T
↑
I L I I H System to S4 soft off
PA6 11 BAT_CLK
T
↑
I L I I H
PA7 10 H8_SUSB
T
↑
I H I L I H Invert from SUSA# to wake up H8 when
system resumed by MDC modem and
internal LAN.
Inform system power management status