Haier HSU-12HSA03/R2(DB) Manuale Utente

Haier air conditioner

Edition: 20070116

- 8 -

3. Electrical control

ĉ. Scope of Application

This specification use for HSU-09/12HSA03/R2

˄DB˅frequency conversion air condition are manufactured 

by Haier air condition parent company. "Setting value" (express in parameter) in this specification 

means is a parameter that is stored in EEPROM. Refer to [EEPROM parameter table].

1. Chip pin definition

This controller adopts MOTROLA MC68HC908 AB32; Chip each pin definition as following:

1

PTC4

door switch

2

IRQ

3

RST

over-zero detection

4

PTF0/TACH2

remote control receiving

5

PTF1/TACH3

SDA

6

PTF2/TBCH2

SCL

7

PTF3/TBCH3

Buzzer

8

PTF4/TBCH0

Swing stepping motor A

9

NC

10

PTF7

Swing stepping motor D

11

PTF5/TBCH1

Swing stepping motor B

12

PTF6

Swing stepping motor C

13

PTE0/TXD

network output

14

PTE1/RXD

network output

15

PTE2/TACH0

PG feedback

16

PTE3/TACH1

PG output

17

PTE4/SS

fresh air

18

PTE5/MISO

negative ion output

19

PTE6/MOSI

self check/ decrease time

20

PTE7/SPSCK

empty

21

VSS

GND

22

VDD

VCC

23

PTG0/KBD0

ultraviolet ray A

24

PTG1/KBD1

empty

25

PTG2/KBD2

empty

26

PA0 selection panel 1

sliding stepping motor A

27

PA1 high/low drive model

sliding stepping motor B

28

PA2 large/small model

sliding stepping motor C

29

PA3 A/B code selection

sliding stepping motor D

30

PA4 panel selection 2

pushup stepping motor A

31

PA5

pushup stepping motor B