Read Sharp AR-FN5 (serv.man3) Service Manual online
3.4. CPU H8S2350 port table
Pin No.
Signal name
CPU operation mode
Input/Output
Function
Logic
1
CS1
/CS1
Output
Chip Select
L; Select
2
CS0
/CS0
Output
Chip Select
L; Select
3
Vss
Vss
Power
Power
GND
4
NC
NC
NC
NC
GND
5
Vcc
Vcc
Power
Power
5V
6
A0
A0
Output
System Bus (Address)
7
A1
A1
Output
System Bus (Address)
8
A2
A2
Output
System Bus (Address)
9
A3
A3
Output
System Bus (Address)
10
Vss
Vss
Power
Power
GND
11
A4
A4
Output
System Bus (Address)
12
A5
A5
Output
System Bus (Address)
13
A6
A6
Output
System Bus (Address)
14
A7
A7
Output
System Bus (Address)
15
A8
A8
Output
System Bus (Address)
16
A9
A9
Output
System Bus (Address)
17
A10
A10
Output
System Bus (Address)
18
A11
A11
Output
System Bus (Address)
19
Vss
Vss
Power
Power
GND
20
A12
A12
Output
System Bus (Address)
21
A13
A13
Output
System Bus (Address)
22
A14
A14
Output
System Bus (Address)
23
A15
A15
Output
System Bus (Address)
24
A16
A16
Output
System Bus (Address)
25
A17
A17
Output
System Bus (Address)
Not Used
26
A18
A18
Output
System Bus (Address)
Not Used
27
A19
A19
Output
System Bus (Address)
Not Used
28
Vss
Vss
Power
Power
GND
29
A20
A20
Output
System Bus (Address)
Not Used
30
/T2OD#
PA5, /IRQ5
Input
Tray2 Paper Out Sensor
L; Paper Detect
31
CASW#
PA6, /IRQ6
Input
Cartridge Switch
H; No Cartridge
32
/SEPL#
PA7, /IRQ7
Input
Self Priming Sensor
L; Ready
33
STHP#
P67, /IRQ3
Input
HP Sensor
L; Home Position
34
SNSW
P66, /IRQ2
Input
Stapler Needle Switch
H; No Needle
35
Vss
Vss
Power
Power
GND
36
Vss
Vss
Power
Power
GND
37
WDPD#
P65, /IRQ1
Input
Paper Wide Detect
L; Paper Detect
38
INPD#
P64, /IRQ0
Input
Paper in Sensor
L; Paper Detect
39
Vcc
Vcc
Power
Power
5V
40
STM+
PE0
Output
Stapler Motor Control
H; ON(+)
41
STM-
PE1
Output
Stapler Motor Control
H; ON(-)
42
LUM+
PE2
Output
Lift Up Motor Control
H; ON(+)
43
LUM-
PE3
Output
Lift Up Motor Control
H; ON(-)
44
Vss
Vss
Power
Power
GND
45
OFM+
PE4
Output
Offset Motor Control
H; ON(+)
46
OFM-
PE5
Output
Offset Motor Control
H; ON(-)
47
GLSL1
PE6
Output
Gate-L Solenoil Drive
H; ON(1)
48
GLSL2
PE7
Output
Gate-L Solenoil Drive
H; ON(2)
49
D0
D8
Bi-Directional
System Bus (DATA)
50
D1
D9
Bi-Directional
System Bus (DATA)
51
D2
D10
Bi-Directional
System Bus (DATA)
52
D3
D11
Bi-Directional
System Bus (DATA)
53
Vss
Vss
Power
Power
GND
54
D4
D12
Bi-Directional
System Bus (DATA)
55
D5
D13
Bi-Directional
System Bus (DATA)
56
D6
D14
Bi-Directional
System Bus (DATA)
57
D7
D15
Bi-Directional
System Bus (DATA)
58
Vcc
Vcc
Power
Power
5V
59
FINCMD
TxD0
Output
60
FMMD
P31
Output
Main Motor Current Control
H; Low
61
FINSTS
RxD0
Input
62
BKMD
P33
Output
Back Motor Current Control
H; Low
63
SDMD
P34
Output
Side Motor Current Control
H; Low
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