Figure 4-64

162

Hard power down

 

mode equivalent circuit

XTAL 2

 

 

CPU CLOCK

XTAL 1

 

HPDI

CONTROL

 

PCON 87H

 

 

SMOD

HPD

RPD

GF1

GF0

PD

IDL

Bit

7

6

5

4

3

2

1

0

Set

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IOCON 0F8H

 

T32

SERR

IZC

P3HZ

P2HZ

P1HZ

ALF

 

 

 

 

 

 

 

 

 

Bit

7

6

5

4

3

2

1

0

 

 

 

 

 

 

 

 

 

Set

 

 

 

 

 

 

 

I/O FLOATING

MSM80C154S/83C154S/85C154HVS

Page 169
Image 169
Sonic Alert msm80154s, msm83c154s, msm85c154hvs 162, Hard power down, Xtal Hpdi Control Pcon 87H Smod HPD RPD GF1 GF0 IDL