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CPU: M37702 (IC110) pin signals
Pin No.
Port
Signal name
IN/OUT
H/L
Description
1
P70
AES
IN
Analog input signal (AE sensor)
2
P67
IN1
IN
Lower unit serial parallel IC input 2 port
3
P66
IN0
IN
Lower unit serial parallel IC input 2 port
4
P65
MMRE
IN
Main motor timer input
5
P64
FWS
IN
Power zero cross pulse detection signal
6
P63
MHPS
IN
H
Mirror home position detecting signal ("HIGH at Home position)
7
P62
AEG2
OUT
AE gain select signal
8
P61
AEG1
OUT
AE gain select signal
9
P60
SMPWM
IN/OUT
H
Transport motor timer output clock
10
P57
AEG0
OUT
AE gain select signal
11
P56
CLPWM
OUT
H
Copy lamp control signal
12
P55
HL
OUT
H
Heater lamp control signal
13
P54
MMPWM
OUT
H
Main motor timer output clock
14
P53
PR
OUT
H
Power relay control signal
15
P52
BLPWM
OUT
Blank lamp control signal
16
P51
PSPS
OUT
H
Paper separation solenoid control signal
17
P50
DL
OUT
H
Discharge lamp control signal
18
P47
SCLK
OUT
Data output clock signal to EEPROM
19
P46
SDAT
IN/OUT
—
Serial data I/O to EEPROM
20
P45
LHPS
IN
H
Lens home position detecting signal (HIGH at home position)
21
P44
IMP
IN
—
NC
22
P43
SPFM
OUT
H
SDH cooling fan motor control signal
23
P42
VFM
OUT
H
Ventilation fan motor control signal
24
P41
CFM
OUT
H
Optical system cooling fan motor control signal
25
P40
POD
OUT
H
Paper exit detecting sinal
26
BYTE
BYTE
IN
External data bus select signal ("L" = 16 bit, "H" = 8 bit)
27
CNVss
CNV
SS
IN
H
Processor mode selection
28
RESET
RESET
IN
L
Reset signal (Reset at "L")
29
X
IN
X
IN
IN
Clock IN
30
X
OUT
X
OUT
OUT
Clock OUT
31
E
E
OUT
Enable output
32
Vss
Vss
OUT
Power (GND)
33
P33
PNC
OUT
Personal counter clock
34
P32
TRC
OUT
H
Transport roller clutch
35
P31
NrjStar.
OUT
H
Power switch OFF signal for EnergyStar (Power swith OFF at HIGH)
36
P30
DVF
IN
L
Not used
37
P27
TMb
OUT
H
Toner supply motor drive signal
38
P26
TMa
OUT
H
Toner supply motor drive signal
39
P25
LEMT0
OUT
H
Lens motor drive signal A
40
P24
LEMT1
OUT
H
Lens motor drive signal B
41
P23
LEMT2
OUT
H
Lens motor drive signal –A
42
P22
LEMT3
OUT
H
Lens motor drive signal –B
43
P21
MPFC
OUT
H
Multi paper feed clutch control signal
44
P20
MPFS
OUT
H
Multi paper feed solenoid control signal
45
P17
MFD1
IN
Single/multi input 1
L
Not set
H
Single paper
present
L
Multi
H
Single paper
exhaust
46
P16
MFD0
IN
Single/multi input 2
H
L
L
H
47
P15
MRPS
OUT
H
48
P14
MRMT0
OUT
H
Mirror motor drive signal A
49
P13
MRMT1
OUT
H
Mirror motor drive signal B
50
P12
MRMT2
OUT
H
Mirror motor drive signal –A
51
P11
MRMT3
OUT
H
Mirror motor drive signal –B
52
P10
SRPL
OUT
H
SDF lamp
53
P07
SRRC
OUT
H
Resist roller clutch drive signal
54
P06
SPFC
OUT
H
Paper feed roller clutch drive signal
55
P05
SME
OUT
Transport motor ON/OFF control signal
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