AR-FN5 (serv.man3). Maintenance Troubleshooting Circuti descriptions - Sharp Copying Equipment Service Manual (repair manual). Page 5

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3. CPU (H8S/2350)
3.1. General
The CPU controls the finisher loads and controls the system by send-
ing/receiving commands to/from the machine MCU PWB through the
serial communication line.
3.2. Features
The H8S/2350 is a microcomputer based on the H8S/2000 CPU, in
which the peripheral functions required for the system are integrated.
The H8S/2000 CPU is of internal 32bit composition, and is equipped
with the general-purpose registers of 16bit x 16 and the simple, opti-
mized command set with high-speed operations. It can handle 16MB
linear address space.
Its major functions include the DMA controller (DMAC), the bus mas-
ter of the data transfer controller (DTC), RAM, memory, the 16bit timer
pulse unit (TPU), the programmable pulse generator (PPG), the watch
dog timer (WDT), the serial communication interface (SCI), the A/D
converter, the D/A converter, the I/O port, and other peripheral func-
tions.
3.3.  Pin configuration
MD2
MD1
MD0
PG2/CS2
PG1/CS3
PG0/CAS
P17/PO15/TIOCB2/TCLKD
P16/PO14/TIOCA2
P15/PO13/TIOCB1/TCLKC
P14/PO12/TIOCA1
P13/PO11/TIOCD0/TCLKB
P12/PO10/TIOCC0/TCLKA
P11/PO9/TIOCB0/DACK1
P10/PO8/TIOCA0/DACK0
VREF
AVCC
AVSS
P40/AN0
P41/AN1
P42/AN2
P43/AN3
P44/AN4
P45/AN5
P46/AN6/DA0
P47/AN7/DA1
VSS
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
PE0/D0
PE1/D1
PE2/D2
PE3/D3
PE4/D4
PE5/D5
PE6/D6
PE7/D7
PD1/D9
PD2/D10
PD3/D11
PD4/D12
PD5/D13
PD6/D14
PD7/D15
PD0/D8
P30/TXD0
P31/TXD1
P32/RXD0
P33/RXD1
P34/SCK0
P35/SCK1
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
VCC
VSS
VCC
VSS
EX
TA
L
XTAL
NMI
WDTOVF
RES
STBY
PF7/
φ
PF0/BRE
Q
PF1/BA
CK
PF2/LCAS/
W
AIT/BREQ0
PF3/LWR
PF4/HWR
PF5/RD
PF6/AS
P62/DREQ1
P63/TEND1
P60/DREQ0
/CS4
P61/TEND0/CS5
P27/PO7/TIOCB5
P26/PO6/TIOCA5
P25/PO5/TIOCB4
P24/PO4/TIOCA4
P23/PO3/TIOCD3
P22/PO2/TIOCC3
P21/PO1/TIOCB3
P20/PO0/TIOCA3
VC
C
VS
S
VS
S
VS
S
VS
S
VS
S
VS
S
P52
P51
P50
P53/ADTRG
102
101
100
99
98
97
69
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
VC
C
PG4/CS0
PG3/CS1
P64/IRQ0
P65/IRQ1
P67/CS7/IRQ3
P66/CS6/IRQ2
PA
0/A16
PA
1/A17
PA
2/A18
PA
3/A19
PA4/A20/I
R
Q4
PA5/A21/I
R
Q5
PA6/A22/I
R
Q6
PA7/A23/I
R
Q7
PB
0/A8
PB
1/A9
PB
2/A10
PB
3/A11
PB
4/A12
PB
5/A13
PB
6/A14
PB
7/A15
PC
0/A
0
PC
1/A
1
PC
2/A
2
PC
3/A
3
PC
4/A
4
PC
5/A
5
PC
6/A
6
PC
7/A
7
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
VS
S
VS
S
VS
S
VC
C
VS
S
VS
S
VS
S
VS
S
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