Sharp ER-A57R1 Service Manual page 67

No. Pin No. Pin name
55 29 TRQ2-
56 11 D0
57 12 D1
58 13 D2
59 14 D3
60 16 D4
61 17 D5
62 18 D6
63 19 D7
64 61 DB0
65 62 DB1
66 63 DB2
67 64 DB3
68 66 DB4
69 67 DB5
70 68 DB6
71 69 DB7
72 21 A0
73 22 A1
74 23 A2
75 24 A3
76 25 A4
77 26 A5
78 10 OPTCS-
79 31 RDO-
80 30 WRO-
81 9 RES-
82 34 R-
83 37 W-
84 51 RES
85 92 X1
86 91 X2
87 53 XOUT
88 8 TRCK
89 35 AB0
90 33 AB1
91 85 USICH
92 50 PX
93 39 VCC
94 89 VCC
95 15 GND
96 40 GND
97 65 GND
98 90 GND
99 49 RTS0-
100 44 RTS1-
ICU : CMOS level input (internal pullup resistor)
O : Output
IS : TTL level input (internal schmit circuit)
ISC : CMOS level input (internal schmit circuit)
3S : Three state output
IOU : I/O port (internal pullup resistor)
I/O Pin ER-A5RS
O 3S NC
I/O IOU D0
I/O IOU D1
I/O IOU D2
I/O IOU D3
I/O IOU D4
I/O IOU D5
I/O IOU D6
I/O IOU D7
I/O IOU DB0
I/O IOU DB1
I/O IOU DB2
I/O IOU DB3
I/O IOU DB4
I/O IOU DB5
I/O IOU DB6
I/O IOU DB7
I I A0
I I A1
I I A2
I I A3
I I A4
I I A5
I I OPTCS-
I I RDO-
I I WRO-
I IS RES-
O O R-
O O W-
O O RES
O X1
I X2
O O XOUT
O O NC
O O AB0
O O AB1
I ISC GND
O PX
+5V
+5V
GND
GND
GND
GND
O O RTS1-
O O RTS2-
TIMER IRQ signal (INLINE)
DATA BUS (MAIN)
DATA BUS (USART)
ADDRESS BUS (MAIN)
OPTION CHIP SELECT (from MAIN)
READ signal (from MAIN)
WRITE signal (from MAIN)
RESET signal (from MAIN)
READ signal (To USART)
WRITE signal (To USART)
RESET signal (To USART)
Oscillation circuit
Clock for USART
T/R clock for 1CH USART
Address bus for USART
UNIT3 USART 1CH/2CH select
Power source clock
RS-232 control signal RTS- output
4 ™ 24
Description