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
9NC
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
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