Haier HSU-09HSA03/R2(DB), HSU-12HSA03/R2(DB) manual Scope of Application, Chip pin definition

Haier air conditioner Edition: 20070116

3. Electrical control

. 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
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