Ic11 ( Engine Control Cpu ); Ic12 ( Eeprom ) - Panasonic KX-P7100 Service Manual

7.9.

IC11 ( Engine Control CPU )

IC11 (Engine Control CPU)
Pin
Symbol In/Out
No.
1 UI2 -
2 INT27 In
3 AN0 In
4 P51 In
5 P52 Out
6 P53 Out
7 P54 Out
8 P55 Out
9 P56 Out
10 P57 Out
11 AVCC -
12 AVR -
13 AVSS -
14 INT10 In
15 P61 In
16 INT12 In
17 P63 In
18 P64 In
19 nRST In
20 MOD0 -
21 MOD1 -
22 X0 In
23 X1 -
24 VSS -
25 P27 -
26 P26 -
27 P25 Out
28 P24 Out
29 P23 Out
30 PPGO2 Out
Out
31 PPGO1
32 P20 Out

7.10. IC12 ( EEPROM )

Function
(not used)
Door open signal
Thermistor voltage detect
TESEN
Scanner motor control signal
Fan motor control signal
Toner Empty LED control
signal
Charger control signal
Dev. bias channel signal
Transfer bias control signal
+5V
+5V
GND
Hsync signal
Scanner motor lock signal
Top sennsor signal
Process unit detection signal
Fan motor error signal
System reset
GND
GND
System clock
N.C.
GND
(not used)
(not used)
EEPROM data out
EEPROM clock
EEPROM chip select
Scanner motor clock
Fuser contorl signal
+5V contorl signal
IC12 (EEPROM)
Pin
Symbol In/Out
No.
1 CS In
2 SK In
3 DI In
4 DO Out
5 GND -
6 TEST -
7 NC -
8 VCC -
Pin
Symbol In/Out
No.
33 P17 In
34 P16 -
35 P15 -
36 P14 In
37 P13 -
38 P12 -
39 P11 In
40 P10 In
41 P07 Out
42 P06 Out
43 P05 Out
44 P04 Out
45 P03 -
46 P02 Out
47 P01 Out
48 P00 Out
49 NC -
50 P30 Out
51 SCK1 In
52 SO1 Out
53 SI1 In
54 PTO2 Out
55 P35 In
56 VCC -
57 WTO In
58 PTO1 Out
59 INT20 In
60 P41 Out
61 P42 Out
62 P43 In
63 P44 Out
64 P45 Out
Function
Chip Select Signal
Serial Clock
Data Input
Data Output
GND
Test terminal (not used)
N.C.
+5 V
93
Function
EEPROM data in
(not used)
N.C.
Resist seneor signal
N.C.
N.C.
EEPROM initialize signal
Exit sensor signal
Pick up control signal
Resist control signal
Exit control signal
Motor I0 control signal
N.C.
Purge signal
Status busy signal
Top signal
GND
Printer ready signal
Communication clock
Status data signal
Command data signal
Dev. bias PWM signal
Print signal
+5V
Command busy signal
Transfer bias PWM signal
Power save signal
Serial clock
Serial data out
Serial data in
Chip select
Motor I1 control signal
KX-P7100