XL-MP35H (serv.man20). Function table of IC - Sharp Audio Service Manual (repair manual). Page 2

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14,55,89 VSS1,VSS2,

—

Power supply positive terminal

VSS3

17,54,90 VDD1,VDD2

—

Power supply negative terminal

VDD3

1,2

PORT0

Input/Output

• 8-bit I/O port • Specifiable 4 bit by 4 bit  • Pull-up resistor can be ON/OFF 4 bit by 4 bit

95~100

P00~P07

• HOLD release input

• Port 0 interrupt input

3~10

PORT1

Input/Output

• 8-bit I/O port

P10~P17

• Specifiable bit by bit
• Pull-up resistor can be ON/OFF 1bit by 1bit
• Usable as
  P10: SIO0 data output               P11: SIO0 data input & bus input/output
  P12: SIO0 clock input/output

 P13: SIO1 data output

  P14: SIO1 data input & bus input/output
  P15: SIO1 clock input/output

 P16: Timer 1PWML output

  P17: Timer 1PWMH output/buzzer output

87*,88*

PORT3

Input/Output

• 6 -bit I/O port

32~35

P30~P35

• Specifiable 1bit by 1bit
• Pull-up resistor can be ON/OFF 1bit by 1bit
• Usable as
  P30 - P33:INT4 input/HOLD release input/Timer 1 event input/Timer 0L capture input/Timer
  0H capture input
  P34 & P35:INT5 input/HOLD release input/Timer 1 event input/Timer 0L capture input/Timer
  0H capture input
 • Interrupt system

26,27*

PORT7

Input/Output

• 4-bit I/O port

28,29

P70~P73

• Specifiable 1bit by 1bit
• Pull-up resistor can be ON/OFF 1bit by 1bit
• Usable as
  P70:INT0 input/Hold release input/Timer 0L capture input/Watchdog timer output
  P71:INT1 input/Hold release input/Timer 0H capture input
  P72:INT2 input/Hold release input/Timer 0 event input/Timer 0L capture input
  P73:INT3 input (with noise filter)/Timer 0 event input/Timer 0H capture input
  A/D conversion input port: AN8 (P70), AN9 (P71)
 • Interrupt system

22*,25*

PORT8

Input/Output

• 8-bit I/O port

18~21

P80~P87

• 1-bit oriented input/output

23,24

• Usable as
  A/D conversion input port: AN0 - AN7
  Small signal detect input port: MICIN (P87)

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

 INT0
 INT1
 INT2
 INT3

Rise

Fall

Rise & Fall

H level

L level

 INT0
 INT1
 INT2
 INT3

Rise

Fall

Rise & Fall

H level

L level