Service manual

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53

8575

8575

A N/B Maintenance

A N/B Maintenance

1.7 Appendix 2: H8 Pins Definitions

Invert from SUSA# to wake up H8 when system

resumed by MDC modem and internal LAN.

Inform system power management status

System to S4 soft off

System resume from S4 soft off through RTC

Alarm

Battery low detect

Ring detect

AC adaptor in detect

Crystal input

H8 chip reset

Power button

H8 Hardware Standby input pull high

H

H mode3 single chip mode

Function

H

H

L

H

H

H/L

H

H

H

H

H

H

H

STANDBY

I

I

I

I

I

I

I

I

O

I

I

I

I

I

I

I

L

H

HL

H

H

H

H

I

I

I

I

I

I

I

I

O

I

I

I

I

I

I

I

ON

H

L

L

H

H

H

H/L

H

LH

H

H

H

H

I

I

I

I

I

I

I

I

O

I

I

I

I

I

I

I

After

RESET/OFF

I↑

I↑

I↑

I↑

I↑

I↑

I↑

I↑

O

I

I

I

I↑

I↑

I↑

I↑

During

RESET

H8_SUSB

BAT_CLK

H8 SUSC#

H8 SUSC

BATT DEAD#

RI#

H8 ADEN#

LID#

RESET OUT

Crystal

Crystal

RESET#

POWER BTN#

STBY#

H8_MODE1

H8_MODE0

H8 Pin

Definitions

10

11

20

21

30

31

47

48

100

3

2

1

7

8

5

6

Pin

PA7

PA6

PA5

PA4

PA3

PA2

PA1

PA0

Port A COMOS input level (input high min=3.5V, input low max=1.0V)

RESET OUT#

EXTAL

XTAL

RESET#

NMI#

STBY#

MD1

MD0

Name

The shadowed block is the selected function