Sharp UP-800 (serv.man19) Service Manual ▷ View online
UP-820N/820F (V)
UP-I04EF HARD DESCRIPTION
7 – 1
CHAPTER 7. UP-I04EF HARD DESCRIPTION
1. BLOCK DIGRAM
2. CPU (D6413003)
(1) Pin configuration
UP-820N/820F (V)
UP-I04EF HARD DESCRIPTION
7 – 2
(2) PIN Description
Pin No.
SYMBOL
SIGNAL NAME
I/O
I/O
FUNCTION
1
VCC
+5V
2
PB0
SW10
IN
IN
SELECT SWITCH
3
PB1
SW11
IN
IN
SELECT SWITCH
4
PB2
SW12
IN
IN
SELECT SWITCH
5
PB3
SW13
IN
IN
SELECT SWITCH
6
PB4
SW14
IN
IN
SELECT SWITCH
7
PB5
SW15
IN
IN
SELECT SWITCH
8
PB6
SW16
IN
IN
SELECT SWITCH
9
PB7
SW17
IN
IN
SELECT SWITCH
10
VSS
GND
GND
11
PC0
IN
IN
GND
12
PC1
IN
IN
GND
13
PC2/CS4_
/CSS
IN
OUT
EFT I/F SUB CPU SIDE CHIP SELECT
14
PC3
/RTS
IN
OUT
RS232C RS SIGNAL ON : 0 OUTPUT
15
PC4
/DSR
IN
IN
RS232C DR SIGNAL ON : 0 INPUT
16
PC5
IN
IN
GND
17
PC6
/DTR
IN
OUT
RS232C ER SIGNAL ON : 0 OUTPUT
18
PC7/IRQ7_
/CTS
IN
IN
IRQ7 RS232C CS SIGNAL ON : 0 INPUT
19
/RES0
NU
IN
OUT
NU
20
P90
IN
IN
GND
21
P91
TXD
IN
OUT
RS232C SD SIGNAL
22
P92
IN
IN
GND
23
P93
RXD
IN
IN
RS232C RD SIGNAL
24
P94/IRQ4_
/DCD
IN
IN
IRQ4 RS232C CD SIGNAL ON:0 INPUT
25
P95/IRQ5_
/CI
IN
IN
IRQ5 RS232C CI SIGNAL ON:0 INPUT
26
VSS
GND
GND
27
P40
IN
IN
GND
28
P41
IN
IN
GND
29
P42
IN
IN
GND
30
P43
IN
IN
GND
31
P44
IN
IN
GND
32
P45
IN
IN
GND
33
P46
IN
IN
GND
34
P47
IN
IN
GND
35
VSS
GND
GND
36
D8
SD0
I/O
I/O
DATA BUSS 0
37
D9
SD1
I/O
I/O
DATA BUSS 1
38
D10
SD2
I/O
I/O
DATA BUSS 2
39
D11
SD3
I/O
I/O
DATA BUSS 3
40
D12
SD4
I/O
I/O
DATA BUSS 4
41
D13
SD5
I/O
I/O
DATA BUSS 5
42
D14
SD6
I/O
I/O
DATA BUSS 6
43
D15
SD7
I/O
I/O
DATA BUSS 7
44
VCC
VCC
+5V
45
A0
SA0
OUT
OUT
ADDRESS BUS 0
46
A1
SA1
OUT
OUT
ADDRESS BUS 1
47
A2
SA2
OUT
OUT
ADDRESS BUS 2
48
A3
SA3
OUT
OUT
ADDRESS BUS 3
49
A4
SA4
OUT
OUT
ADDRESS BUS 4
UP-820N/820F (V)
UP-I04EF HARD DESCRIPTION
7 – 3
50
A5
SA5
OUT
OUT
ADDRESS BUS 5
51
A6
SA6
OUT
OUT
ADDRESS BUS 6
52
A7
SA7
OUT
OUT
ADDRESS BUS 7
53
VSS
GND
GND
54
A8
SA8
OUT
OUT
ADDRESS BUS 8
55
A9
SA9
OUT
OUT
ADDRESS BUS 9
56
A10
SA10
OUT
OUT
ADDRESS BUS 10
57
A11
SA11
OUT
OUT
ADDRESS BUS 11
58
A12
SA12
OUT
OUT
ADDRESS BUS 12
59
A13
SA13
OUT
OUT
ADDRESS BUS 13
60
A14
SA14
OUT
OUT
ADDRESS BUS 14
61
A15
SA15
OUT
OUT
ADDRESS BUS 15
62
A16
SA16
OUT
OUT
ADDRESS BUS 16
63
A17
SA17
OUT
OUT
ADDRESS BUS 17
64
A18
SA18
OUT
OUT
ADDRESS BUS 18
65
A19
SA19
OUT
OUT
ADDRESS BUS 19 (NU)
66
P60
/WAIT
IN
IN
+5V
67
P61
IN
IN
GND
68
P62
IN
IN
GND
69
f
f
OUT
OUT
OPC1 SYSTEM CLOCK (9.83 MHz)
70
/STBY
/STBY
IN
IN
+5V
71
/RES
/RES0
IN
IN
SYSTEM RESET
72
NMI
IN
IN
GND
73
VSS
GND
GND
74
EXTAL
EXTAL
IN
IN
CLOCK OSCILLATOR : 9.83 MHz
75
XTAL
XTAL
IN
IN
CLOCK OSCILLATOR : 9.83 MHz
76
VCC
+5V
77
/AS
NU
OUT
OUT
NU
78
/RD
/RDS
OUT
OUT
READ
79
/HWR
/WRS
OUT
OUT
WRITE
80
/LWR
NU
OUT
OUT
NU
81
MD0
MD0
IN
IN
+5V
82
MD1
MD1
IN
IN
+5V
83
MD2
MD2
IN
IN
GND
84
AVCC
+5V
85
Vref
+5V
86
P70
IN
IN
GND
87
P71
IN
IN
GND
88
P72
IN
IN
GND
89
P73
IN
IN
GND
90
P74
IN
IN
GND
91
P75
IN
IN
GND
92
P76
IN
IN
GND
93
P77
IN
IN
GND
94
AVSS
GND
GND
95
A20
SA20
OUT
OUT
ADDRESS BUS 20 (NU)
96
A21
SA21
OUT
OUT
ADDRESS BUS 21 (NU)
97
A22
SA22
OUT
OUT
ADDRESS BUS 22 (NU)
98
A23
SA23
OUT
OUT
ADDRESS BUS 23 (NU)
99
VSS
GND
GND
Pin No.
SYMBOL
SIGNAL NAME
I/O
I/O
FUNCTION
UP-820N/820F (V)
UP-I04EF HARD DESCRIPTION
7 – 4
3. CPLD(LC4032V)
(1) Pin configuration
100
P80/IRQ0_
/POFF
IN
IN
IRQ0 POWER OFF SIGNAL
101
P81/IRQ1_
IBF
IN
IN
IRQ1 INPUT BUFFER FULL SIGNAL
102
P82
/RASS
IN
OUT
RAM CHIP SELECT
103
P83/IRQ3
OBF
IN
IN
IRQ3 OUTPUT BUFFER FULL SIGNAL
104
P84
/ROSS
IN
OUT
ROM CHIP SELECT
105
PA0
SW20
IN
IN
SELECT SWITCH (RESERVE) GND
106
PA1
SW21
IN
IN
SELECT SWITCH (RESERVE) GND
107
PA2
SW22
IN
IN
SELECT SWITCH (RESERVE) GND
108
PA3
SW23
IN
IN
SELECT SWITCH (RESERVE) GND
109
PA4
SW24
IN
IN
SELECT SWITCH (RESERVE) GND
110
PA5
SW25
IN
IN
SELECT SWITCH (RESERVE) GND
111
PA6
SW26
IN
IN
SELECT SWITCH (RESERVE) GND
112
PA7
SW27
IN
IN
SELECT SWITCH (RESERVE) GND
Pin No.
SYMBOL
SIGNAL NAME
I/O
I/O
FUNCTION
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