Sharp ER-A450T Service Manual - Page 12

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3) Pin description PIN No. SYMBOL SIGNAL NAME 1 /RES /RESET 2 NMi NMi 3 VSS 4 P10 5 P11 6 P12 7 P13 8 P14 9 P15 10 P16 11 P17 12 D0 13 D1 14 D2 15 D3 16 D4 17 D5 18 D6 19 D7 20 VSS 21 A0 22 A1 23 A2 24 A3 25 A4 26 A5 27 A6 28 A7 29 A8 30 A9 31 A10 32 A11 33 A12 34 A13 35 A14 36 A15 37 VSS 38 A16 39 A17 40 A18 41 A19 42 A20 43 A21 44 A22 45 A23 46 VSS 47 /WAIT 48 /BACK 49 /BREQ 50 P33 51 P34 52 P35 53 P36 54 P37 55 VCC 56 P40 57 P41 VSS ERC LDRQ /SHEN /FRES BUSY /RDY PDS D0 D1 D2 D3 D4 D5 D6 D7 VSS A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 VSS A16 A17 A18 A19 A20 A21 A22 A23 VSS /WAIT /BACK /BREQ DOPS /DR0 /DR1 NU NU VCC /IFV /PTMG 58 P42 59 P43 /TOF /BOF IN/ OUT IN IN OUT OUT IN OUT IN IN IN IN I/O I/O I/O I/O I/O I/O I/O I/O OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT OUT IN OUT IN IN OUT OUT IN IN IN IN IN IN FUNCTION RESET INPUT from CKDC WUTH BUFFER NON-MASKABLE INTERRUPT INPUT FOR SSP INTERRUPT INPUT GND EVENT READ CANCEL (to CKDC) LOAD REQUEST (to CKDC) SHIFT ENABLE (from CKDC) FISCAL MEMORY RESET (Nu) FISCAL MEMORY BUSY (Nu) FISCAL MEMORY READY (Nu) POP-UP DISPLAY SENSOR (Nu) GND DATA BUS 0 DATA BUS 1 DATA BUS 2 DATA BUS 3 DATA BUS 4 DATA BUS 5 DATA BUS 6 DATA BUS 7 GND ADDRESS BUS 0 ADDRESS BUS 1 ADDRESS BUS 2 ADDRESS BUS 3 ADDRESS BUS 4 ADDRESS BUS 5 ADDRESS BUS 6 ADDRESS BUS 7 ADDRESS BUS 8 ADDRESS BUS 9 ADDRESS BUS 10 ADDRESS BUS 11 ADDRESS BUS 12 ADDRESS BUS 13 ADDRESS BUS 14 ADDRESS BUS 15 GND ADDRESS BUS 16 ADDRESS BUS 17 ADDRESS BUS 18 ADDRESS BUS 19 ADDRESS BUS 20 ADDRESS BUS 21 ADDRESS BUS 22 ADDRESS BUS 23 GND Wait signal from MPCA Bus control request acknowledge Bus control request Drawer open sensor signal Drawer open drive signal Option drawer 1 drive signal (Nu) GND (Nu) GND +5V (Nu) pull-up Printer (PR-45) timing signal from MPCA (Nu) pull-up (Nu) pull-up PIN No. SYMBOL SIGNAL NAME 60 P44 /PRST 61 P45 62 P46 63 P47 64 VSS 65 P50 66 P51 67 P52 68 P53 69 P54 70 P55 71 P56 72 P57 73 P60 /NEJ NU /NER VSS TRG1 /PSTOP /CKDCR2 OPDS FVPON FMRS /SLIPLMP /STOP /ERS 74 P61 75 P62 76 P63 77 P64 /DRS /CSS /CDS /RR 78 P65 /RSS 79 P66 80 P67 81 VSS 82 AVSS 83 AN0 84 AN1 85 AN2 86 AN3 87 AVCC 88 VCC 89 P80 90 P81 91 P82 92 P83 93 P84 94 P85 95 P86 (/RI), /CI HP VSS AVSS Vrf VHTEST VPTEST TM AVCC VCC /iRQ0 /iRQ1 (/RSRQ) /iRQ2 SCK2 RXD TXD RXD2 96 P87 TXD2 97 VSS 98 EXTAL 99 XTAL 100 VSS 101 φ 102 E 103 /AS 104 /RD 105 /HWR 106 /LWR 107 /RFSH 108 VCC 109 MD0 110 MD1 111 MD2 112 /STBY VSS EXTAL XTAL VSS φ /AS /RD /WR /RFSH VCC MD0 MD1 MD2 /STBY IN/ OUT FUNCTION IN Printer (PR-45) Reset signal from MPCA IN Near END signal journal IN (NU) GND IN Near END signal receipt GND OUT Nu (GND) OUT Nu (GND) OUT Nu (GND) IN Nu (GND) OUT Nu (GND) IN Nu (GND) OUT Nu (GND) OUT Nu (GND) OUT ER signal for RS232 (Equipment Ready) IN DR signal for RS232 (Data set Ready) IN CS signal for RS232 (Clear to Send) IN CD signal for RS232 (Carrier Detect) OUT RR signal for RS232 (Ready to Receive) (Nu) OUT RS signal for RS232 (Request to Send) IN CI signal for RS232 (Calling Indicator) IN Nu (GND) GND IN GND IN Vrf IN VH Test input IN +24V test input IN Thermal head thermistor level test IN +5V +5V IN Interrupt signal 0 from MPCA IN Interrupt signal from OPTION PWB IN OUT IN OUT IN OUT IN IN OUT OUT OUT OUT OUT OUT OUT IN IN IN IN Interrupt signal (Nu) pull-up CKDC & FMC i/F sync shift clock RS232C RECEIVE DATA RS232C SEND DATA CKDC, Fiscal memory unit I/F shift input data CKDC, Fiscal memory unit I/F shift output data GND X-TAL (19.66MHz) X-TAL (19.66MHz) GND System clock (9.83MHz) E clock (NU) Address strobe Read Write Nu Refresh cycle (NU) +5V +5V (MODE 3) +5V (MODE 3) GND (MODE 3) +5V (Nu) 4 - 4

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3) Pin description
PIN
No.
SYMBOL
SIGNAL
NAME
IN/
OUT
FUNCTION
1
/RES
/RESET
IN
RESET INPUT from CKDC WUTH
BUFFER
2
NMi
NMi
IN
NON-MASKABLE INTERRUPT
INPUT FOR SSP INTERRUPT INPUT
3
VSS
VSS
GND
4
P10
ERC
OUT
EVENT READ CANCEL (to CKDC)
5
P11
LDRQ
OUT
LOAD REQUEST (to CKDC)
6
P12
/SHEN
IN
SHIFT ENABLE (from CKDC)
7
P13
/FRES
OUT
FISCAL MEMORY RESET (Nu)
8
P14
BUSY
IN
FISCAL MEMORY BUSY (Nu)
9
P15
/RDY
IN
FISCAL MEMORY READY (Nu)
10
P16
PDS
IN
POP-UP DISPLAY SENSOR (Nu)
11
P17
IN
GND
12
D0
D0
I/O
DATA BUS 0
13
D1
D1
I/O
DATA BUS 1
14
D2
D2
I/O
DATA BUS 2
15
D3
D3
I/O
DATA BUS 3
16
D4
D4
I/O
DATA BUS 4
17
D5
D5
I/O
DATA BUS 5
18
D6
D6
I/O
DATA BUS 6
19
D7
D7
I/O
DATA BUS 7
20
VSS
VSS
GND
21
A0
A0
OUT
ADDRESS BUS 0
22
A1
A1
OUT
ADDRESS BUS 1
23
A2
A2
OUT
ADDRESS BUS 2
24
A3
A3
OUT
ADDRESS BUS 3
25
A4
A4
OUT
ADDRESS BUS 4
26
A5
A5
OUT
ADDRESS BUS 5
27
A6
A6
OUT
ADDRESS BUS 6
28
A7
A7
OUT
ADDRESS BUS 7
29
A8
A8
OUT
ADDRESS BUS 8
30
A9
A9
OUT
ADDRESS BUS 9
31
A10
A10
OUT
ADDRESS BUS 10
32
A11
A11
OUT
ADDRESS BUS 11
33
A12
A12
OUT
ADDRESS BUS 12
34
A13
A13
OUT
ADDRESS BUS 13
35
A14
A14
OUT
ADDRESS BUS 14
36
A15
A15
OUT
ADDRESS BUS 15
37
VSS
VSS
GND
38
A16
A16
OUT
ADDRESS BUS 16
39
A17
A17
OUT
ADDRESS BUS 17
40
A18
A18
OUT
ADDRESS BUS 18
41
A19
A19
OUT
ADDRESS BUS 19
42
A20
A20
OUT
ADDRESS BUS 20
43
A21
A21
OUT
ADDRESS BUS 21
44
A22
A22
OUT
ADDRESS BUS 22
45
A23
A23
OUT
ADDRESS BUS 23
46
VSS
VSS
GND
47
/WAIT
/WAIT
IN
Wait signal from MPCA
48
/BACK
/BACK
OUT
Bus control request acknowledge
49
/BREQ
/BREQ
IN
Bus control request
50
P33
DOPS
IN
Drawer open sensor signal
51
P34
/DR0
OUT
Drawer open drive signal
52
P35
/DR1
OUT
Option drawer 1 drive signal
53
P36
NU
IN
(Nu) GND
54
P37
NU
IN
(Nu) GND
55
VCC
VCC
+5V
56
P40
/IFV
IN
(Nu) pull-up
57
P41
/PTMG
IN
Printer (PR-45) timing signal from
MPCA
58
P42
/TOF
IN
(Nu) pull-up
59
P43
/BOF
IN
(Nu) pull-up
PIN
No.
SYMBOL
SIGNAL
NAME
IN/
OUT
FUNCTION
60
P44
/PRST
IN
Printer (PR-45) Reset signal from
MPCA
61
P45
/NEJ
IN
Near END signal journal
62
P46
NU
IN
(NU) GND
63
P47
/NER
IN
Near END signal receipt
64
VSS
VSS
GND
65
P50
TRG1
OUT
Nu (GND)
66
P51
/PSTOP
OUT
Nu (GND)
67
P52
/CKDCR2
OUT
Nu (GND)
68
P53
OPDS
IN
Nu (GND)
69
P54
FVPON
OUT
Nu (GND)
70
P55
FMRS
IN
Nu (GND)
71
P56
/SLIPLMP
OUT
Nu (GND)
72
P57
/STOP
OUT
Nu (GND)
73
P60
/ERS
OUT
ER signal for RS232 (Equipment
Ready)
74
P61
/DRS
IN
DR signal for RS232 (Data set Ready)
75
P62
/CSS
IN
CS signal for RS232 (Clear to Send)
76
P63
/CDS
IN
CD signal for RS232 (Carrier Detect)
77
P64
/RR
OUT
RR signal for RS232 (Ready to
Receive) (Nu)
78
P65
/RSS
OUT
RS signal for RS232 (Request to
Send)
79
P66
(/RI), /CI
IN
CI signal for RS232 (Calling Indicator)
80
P67
HP
IN
Nu (GND)
81
VSS
VSS
GND
82
AVSS
AVSS
IN
GND
83
AN0
Vrf
IN
Vrf
84
AN1
VHTEST
IN
VH Test input
85
AN2
VPTEST
IN
+24V test input
86
AN3
TM
IN
Thermal head thermistor level test
87
AVCC
AVCC
IN
+5V
88
VCC
VCC
+5V
89
P80
/iRQ0
IN
Interrupt signal 0 from MPCA
90
P81
/iRQ1
(/RSRQ)
IN
Interrupt signal from OPTION PWB
91
P82
/iRQ2
IN
Interrupt signal (Nu) pull-up
92
P83
SCK2
OUT
CKDC & FMC i/F sync shift clock
93
P84
RXD
IN
RS232C RECEIVE DATA
94
P85
TXD
OUT
RS232C SEND DATA
95
P86
RXD2
IN
CKDC, Fiscal memory unit I/F shift
input data
96
P87
TXD2
OUT
CKDC, Fiscal memory unit I/F shift
output data
97
VSS
VSS
GND
98
EXTAL
EXTAL
IN
X-TAL (19.66MHz)
99
XTAL
XTAL
IN
X-TAL (19.66MHz)
100
VSS
VSS
GND
101
φ
φ
OUT
System clock (9.83MHz)
102
E
OUT
E clock (NU)
103
/AS
/AS
OUT
Address strobe
104
/RD
/RD
OUT
Read
105
/HWR
/WR
OUT
Write
106
/LWR
OUT
Nu
107
/RFSH
/RFSH
OUT
Refresh cycle (NU)
108
VCC
VCC
+5V
109
MD0
MD0
IN
+5V (MODE 3)
110
MD1
MD1
IN
+5V (MODE 3)
111
MD2
MD2
IN
GND (MODE 3)
112
/STBY
/STBY
IN
+5V (Nu)
4 – 4