Casio PCR-275 User Manual download pdf (Page 14)

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PIN NO. PIN NAME I/O DESCRIPTION

1 P120/RTP0

2 P121/RTP1

3 P122/RTP2

4 P123/RTP3

5 P124/RTP4

6 P125/RTP5

7 P126/RTP6

8 P127/RTP7

9 VDD - Power Supply

10 X2 -

11 X1 I

12 VSS - GND

13 XT2 -

14 XT1 I

15 RESET I Reset

16 P00/INTP0

17 P01/INTP1

18 P02/INTP2/NMI

19 P03/INTP3

20 P04/INTP4

21 P05/INTP5

22 P06/INTP6

23 AVDD - A/D CONVERTER POWER SUPPLY

24 AVREF0 - Application of Standard Voltage for A/D CONVERTER

25 P10/ANI0

26 P11/ANI1

27 P12/ANI2

28 P13/ANI3

29 P14/ANI4

30 P15/ANI5

31 P16/ANI6

32 P17/ANI7

33 AVSS A/D CONVERTER & D/A CONVERTER GND

34 P130/ANO0

35 P131/ANO1

36 AVREF1 Application of Standard Voltage for D/A CONVERTER

37 P70/RxD2/SI2

38 P71/TxD2/SO2

39 P72/ASCK2/SCK2

40 P20/RxD1/SI1

41 P21/TxD1/SO1

42 P22/ASCK1/SCK1

43 P23/PCL

44 P24/BUZ

45 P25/SI0/SDA0

46 P26/SO0

47 P27/SCK0/SCL0

48 P80/A0

49 P81/A1

50 P82/A2

8 bit input/output PORT

Main system Clock

Sub system Clock

IO 7 bit input/output PORT

I 8 bit input PORT

IO 2 bit input/output PORT

IO 3 bit input/output PORT

IO 8 bit input/output PORT

5-1-3. Pin Function

1 2 ... 9 10 11 12 13 14 15 16 17 18 19 ... 46 47

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Casio PCR-275 User Manual Page 14

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