7-2 FRIEDRICH AIR CONDITIONING CO.
Block Diagram
7-2-2 Micom pin assignment
KS88C4716
GRID5
SEG-DATA(d)
SEG-DATA(e)
SEG-DATA(f)
SEG-DATA(g)
SEG-DATA(h)
SEG-DATA(a)
EEPROM CLK
EEPROM IN
EEPROM OUT
BUZZER
OPTION
JIG OUTPUT
OPTION
SENSOR THERMIS-
TOR(103AT)
OPTION
OPTION
OPTION
OPTION
SAVE OPTION
SWING MOTOR
GND
SEG-DATA(c)
SEG-DATA(b)
GRID4
GRID3
Vcc
Vss
10MHz RESONATOR
10MHz RESONATOR
TEST
GRID2
GRDI1
RESET IC OUTPUT
KEY-IN1
KEY-IN2
REMOCON
EEPROM CS
LOW FAN
COMPERSSOR
MIDDLE FAN
HIGH FAN
4-WAY VALVE
Vcc
1 P0.1 P4.4 44
2 P0.0 P0.2 43
3 P4.3 P0.3 42
4 P4.2 P0.4 41
5 VDD P0.5 40
6 VSS P0.6 39
7 Xout P0.7 38
8 Xin P1.0 37
9 TEST P1.1 36
10 P4.1 P1.2 35
11 P4.0 P1.3 34
12 RESET P1.4 33
13 P2.0 P1.5 32
14 P2.1 P3.7 31
15 P2.2 P3.6 30
16 P2.3 P3.5 29
17 P2.4 P3.4 28
18 P2.5 P3.3 27
19 P2.6 P3.2 26
20 P2.7 P3.1 25
21 P4.5 P3.0 24
22 AVref AVss 23
DB98_04511A(2)-2 2/18/03 4:12 PM Page 7-6