3. CPU PIN TABLE

M16C/80 PORT

USED IN PROCESSOR MODE: MICROPROCESSOR MODE (SEPARATE BUS 8bit WIDTH)

PORT

PIN

Pin

Signal

I/O

Initial

After

Function

No.

name

name

value

POFF

 

 

 

 

 

 

 

 

P00

122

D0

D0

I/O

In

DATA BUS D0

 

 

 

 

 

 

 

 

P01

121

D1

D1

I/O

In

DATA BUS D1

 

 

 

 

 

 

 

 

P02

120

D2

D2

I/O

In

DATA BUS D2

 

 

 

 

 

 

 

 

P03

119

D3

D3

I/O

In

DATA BUS D3

 

 

 

 

 

 

 

 

P04

113

D4

D4

I/O

In

DATA BUS D4

 

 

 

 

 

 

 

 

P05

112

D5

D5

I/O

In

DATA BUS D5

 

 

 

 

 

 

 

 

P06

111

D6

D6

I/O

In

DATA BUS D6

 

 

 

 

 

 

 

 

P07

110

D7

D7

I/O

In

DATA BUS D7

 

 

 

 

 

 

 

 

P10

109

P10

RAS

O

L

Out L

RECEIPT

 

 

 

 

 

 

 

PAPER FEED A

 

 

 

 

 

 

 

 

P11

108

P11

RBS

O

L

Out L

RECEIPT

 

 

 

 

 

 

 

PAPER FEED B

 

 

 

 

 

 

 

 

P12

107

P12

RCS

O

L

Out L

RECEIPT

 

 

 

 

 

 

 

PAPER FEED C

 

 

 

 

 

 

 

 

P13

106

P13

RDS

O

L

Out L

RECEIPT

 

 

 

 

 

 

 

PAPER FEED D

 

 

 

 

 

 

 

 

P14

105

P14

JAS

O

L

Out L

JOURNAL

 

 

 

 

 

 

 

PAPER FEED A

 

 

 

 

 

 

 

 

P15

104

P15

JBS

O

L

Out L

JOURNAL

 

 

/INT3#

 

 

 

 

PAPER FEED B

 

 

 

 

 

 

 

 

P16

103

P16

JCS

O

L

Out L

JOURNAL

 

 

/INT4#

 

 

 

 

PAPER FEED C

 

 

 

 

 

 

 

 

P17

102

P17

JDS

O

L

Out L

JOURNAL

 

 

/INT5#

 

 

 

 

PAPER FEED D

 

 

 

 

 

 

 

 

P20

101

A0

A0

O

Out L

Address Bus A0

 

 

 

 

 

 

 

 

P21

100

A1

A1

O

Out L

Address Bus A1

 

 

 

 

 

 

 

 

P22

99

A2

A2

O

Out L

Address Bus A2

 

 

 

 

 

 

 

 

P23

98

A3

A3

O

Out L

Address Bus A3

 

 

 

 

 

 

 

 

P24

97

A4

A4

O

Out L

Address Bus A4

 

 

 

 

 

 

 

 

P25

96

A5

A5

O

Out L

Address Bus A5

 

 

 

 

 

 

 

 

P26

95

A6

A6

O

Out L

Address Bus A6

 

 

 

 

 

 

 

 

P27

94

A7

A7

O

Out L

Address Bus A7

 

 

 

 

 

 

 

 

P30

92

A8

A8

O

Out L

Address Bus A8

 

 

 

 

 

 

 

 

P31

85

A9

A9

O

Out L

Address Bus A9

 

 

 

 

 

 

 

 

P32

84

A10

A10

O

Out L

Address Bus A10

 

 

 

 

 

 

 

 

P33

83

A11

A11

O

Out L

Address Bus A11

 

 

 

 

 

 

 

 

P34

82

A12

A12

O

Out L

Address Bus A12

 

 

 

 

 

 

 

 

P35

81

A13

A13

O

Out L

Address Bus A13

 

 

 

 

 

 

 

 

P36

80

A14

A14

O

Out L

Address Bus A14

 

 

 

 

 

 

 

 

P37

79

A15

A15

O

Out L

Address Bus A15

 

 

 

 

 

 

 

 

P40

78

A16

A16

O

Out L

Address Bus A16

 

 

 

 

 

 

 

 

P41

77

A17

A17

O

Out L

Address Bus A17

 

 

 

 

 

 

 

 

P42

75

A18

A18

O

Out L

Address Bus A18

 

 

 

 

 

 

 

 

P43

73

A19

A19

O

Out L

Address Bus A19

 

 

 

 

 

 

 

 

P44

72

A20

A20

O

Out L

Address Bus A20

 

 

/CS3#

 

 

 

 

 

 

 

 

 

 

 

 

 

P45

71

A21

A21

O

Out L

Address Bus A21

 

 

/CS2#

 

 

 

 

 

 

 

 

 

 

 

 

 

P46

70

A22

A22

O

Out L

Address Bus A22

 

 

/CS1#

 

 

 

 

 

 

 

 

 

 

 

 

 

PORT

PIN

Pin

Signal

I/O

Initial

After

Function

No.

name

name

value

POFF

 

 

 

 

 

 

 

 

P47

69

A23#

A23#

O

Out L

Address Bus A23

 

 

/CS0#

 

 

 

 

 

 

 

 

 

 

 

 

 

P50

65

WR#

WR#

O

Out L

WRITE STROBE

 

 

 

 

 

 

 

SIGNAL

 

 

 

 

 

 

 

 

P51

64

BHE#

BHE#

O

Out L

NOT USED

 

 

 

 

 

 

 

 

P52

63

RD#

RD#

O

Out L

READ STROBE

 

 

 

 

 

 

 

SIGNAL

 

 

 

 

 

 

 

 

P53

62

BCLK

BCLK

O

Out L

BCLK CLOCK

 

 

 

 

 

 

 

 

P54

55

HLDA#

HLDA#

O

Out L

NOT USED

 

 

 

 

 

 

 

 

P55

54

HOLD#

HOLD#

I

In

NOT USED

 

 

 

 

 

 

 

 

P56

53

ALE

ALE

O

Out L

NOT USED

 

 

 

 

 

 

 

 

P57

52

RDY#

RDY#

I

In

NOT USED

 

 

 

 

 

 

 

 

P60

47

RTS0#

RS2#

O

H

In

RS-232 RS2

 

 

 

 

 

 

 

 

P61

46

CLK0

CI2#

I

In

RS-232 CI2

 

 

 

 

 

 

 

 

P62

45

RxD0

RD2

I

In

RS-232 RD2

 

 

 

 

 

 

 

 

P63

44

TxD0

TD2

O

H

In

RS-232 TD2

 

 

 

 

 

 

 

 

P64

43

RTS1#

RS1#

O

H

In

RS-232 RS1

 

 

 

 

 

 

 

 

P65

42

CLK1

CI1#

I

In

RS-232 CI1

 

 

 

 

 

 

 

 

P66

40

RxD1

RD1

I

In

RS-232 RD1

 

 

 

 

 

 

 

 

P67

38

TxD1

TD1

O

H

In

RS-232 TD1

 

 

 

 

 

 

 

 

P70

37

P70/

KR0#

I

In

KEY RETURN

 

 

TA0out

 

 

 

 

SIGNAL 0

 

 

 

 

 

 

 

 

P71

36

P71/

KR1#

I

In

KEY RETURN

 

 

TA0in

 

 

 

 

SIGNAL 1

 

 

 

 

 

 

 

 

P72

35

P72/

KR2#

I

In

KEY RETURN

 

 

TA1out

 

 

 

 

SIGNAL 2

 

 

 

 

 

 

 

 

P73

34

P73/

KR3#

I

In

KEY RETURN

 

 

TA1in

 

 

 

 

SIGNAL 3

 

 

 

 

 

 

 

 

P74

33

P74/

KR4#

I

In

KEY RETURN

 

 

TA2out

 

 

 

 

SIGNAL 4

 

 

 

 

 

 

 

 

P75

32

P75/

KR5#

I

In

KEY RETURN

 

 

TA2in

 

 

 

 

SIGNAL 5

 

 

 

 

 

 

 

 

P76

31

P76/

KR6#

I

In

KEY RETURN

 

 

TA3out

 

 

 

 

SIGNAL 6

 

 

 

 

 

 

 

 

P77

30

P77/

KR7#

I

In

KEY RETURN

 

 

TA3in

 

 

 

 

SIGNAL 7

 

 

 

 

 

 

 

 

P80

29

P80/

BUZZER

O

L

In

BUZZER SIG-

 

 

TA4out

 

 

 

 

NAL

P81

28

P81/

DSEN

I

In

DRAWER OPEN

 

 

TA4in

 

 

 

 

SENSE SIGNAL

 

 

 

 

 

 

 

 

P82

27

P82/

POFF#

I

In

P-OFF SIGNAL

 

 

INT0#

 

 

 

 

 

 

 

 

 

 

 

 

 

P83

26

P83

SHEN#

I

In

UP-P16DP

 

 

/INT1#

 

 

 

 

SHEN# SINGNAL

 

 

 

 

 

 

 

 

P84

25

P84

 

I

In

NOT USED

 

 

/INT2#

 

 

 

 

 

 

 

 

 

 

 

 

 

P85

24

P85

NMI#

I

In

NMI (CON-

 

 

/NMI#

 

 

 

 

NECTED TO

 

 

 

 

 

 

 

VDD)

 

 

 

 

 

 

 

 

P86

18

P86/

Xcout

O

Out

SUB CLOCK

 

 

Xcout

 

 

 

 

(32.768kHz)

 

 

 

 

 

 

 

 

P87

17

P87/

Xcin

I

In

SUB CLOCK

 

 

Xin

 

 

 

 

(32.768kHz)

 

 

 

 

 

 

 

 

P90

7

P90/

SCK

O

L

Out L

UP-P16DP

 

 

CLK3

 

 

 

 

CLOCK SIGNAL

 

 

 

 

 

 

 

 

ER-A520U/ER-A530U HARDWARE DESCRIPTION

– 8 –

Page 9
Image 9
Sharp ER-A520, ER-A530 service manual CPU PIN Table

ER-A520, ER-A530 specifications

The Sharp ER-A530 and ER-A520 are advanced electronic cash registers designed to cater to the needs of small and medium-sized businesses. These models are known for their reliability, user-friendly interfaces, and robust features that enhance operational efficiency in retail environments.

One of the most prominent features of the ER-A530 and ER-A520 is their advanced transaction processing capabilities. Equipped with a high-speed thermal printer, these registers ensure quick and efficient printing of receipts, which is essential for maintaining customer satisfaction during busy hours. The print quality is clear and legible, providing customers with a professional receipt that reflects the brand's identity.

Both models boast an intuitive and ergonomic keypad layout, making it easy for staff to learn and operate the register with minimal training. The bright and easy-to-read LCD display is another key characteristic, allowing operators to view transaction details clearly in various lighting conditions. This user-friendly design reduces errors and speeds up the checkout process, making it ideal for busy retail settings.

In terms of storage capacity, the Sharp ER-A530 and ER-A520 can handle a substantial number of PLUs (Price Look Up codes), accommodating a wide range of products and services. This extensive capability is particularly beneficial for businesses with a diverse inventory, as it enables quick access to pricing and product information without needing to enter details manually for every sale.

Connectivity is another strong point for these registers. The ER-A530 and ER-A520 support various peripheral devices, including barcode scanners, cash drawers, and kitchen printers. This versatility allows businesses to create a more streamlined checkout process, enhancing overall operational efficiency.

Additionally, both models include advanced reporting features that allow business owners to track sales trends, monitor inventory levels, and analyze performance over time. This analytical capability is crucial for making informed decisions about inventory management, staffing, and sales strategies.

Moreover, the security features in the ER-A530 and ER-A520 ensure that sensitive financial data is protected. With password-protected access to programming and certain functions, businesses can safeguard against unauthorized use while maintaining a secure environment for transactions.

In summary, the Sharp ER-A530 and ER-A520 electronic cash registers stand out in the market for their reliable performance, user-friendly design, and a comprehensive set of features that accommodate the unique needs of retailers. These registers not only enhance customer service but also provide critical insights for inventory and sales management, making them an excellent choice for businesses looking to streamline their operations.