Casio QT-2100 Service Manual page 20

5-4-2. Pin description
PIN NO PIN NAME
1 MD1
2 MD2
3 Vcc-RTC
4 XTAL2
5 EXTAL2
6 Vss-RTC
7 NMI
8 IRQ0/IRL0/PTH[0]
9 IRQ1/IRL1/PTH[1]
10 IRQ2/IRL2/PTH[2]
11 IRQ3/IRL3/PTH[3]
12 IRQ4/PTH[4]
13 D31/PTB[7]
14 D30/PTB[6]
15 D29/PTB[5]
16 D28/PTB[4]
17 D27/PTB[3]
18 D26/PTB[2]
19 VssQ
20 D25/PTA[1]
21 VccQ
22 D24/PTA[0]
23 D23/PTA[7]
24 D22/PTA[6]
25 D21/PTA[5]
26 D20/PTA[4]
27 Vss
28 D19/PTA[3]
29 Vcc
30 D18/PTA[2]
31 D17/PTA[1]
32 D16/PTA[0]
33 VssQ
34 D15
35 VccQ
36 D14
37 D13
38 D12
39 D11
40 D10
41 D9
42 D8
43 D7
44 D6
45 VssQ
46 D5
47 VccQ
48 D4
49 D3
50 D2
51 D1
52 D0
53 A0
54 A1
55 A2
56 A3
57 VssQ
58 A4
59 VccQ
60 A5
61 A6
62 A7
63 A8
64 A9
65 A10
66 A11
67 A12
I / O D E S C R I P T I O N
IN VCC (3.3V)
IN GND
- Vrtc (1.90V)
OUT CLOCK (32.768KHz)
IN CLOCK (32.768KHz)
- RTC (GND)
IN Not used
IN/IN/I/O Power cut
IN/IN/I/O UART INT
IN/IN/I/O PCMCIA INT
IN/IN/I/O IOC CPU CTS
IN/I/O ARCENT/Ether Net INT
I/O Data bus (D31)
I/O Data bus (D30)
I/O Data bus (D29)
I/O Data bus (D28)
I/O Data bus (D27)
- Data bus (D26)
I/O I/O Power supply (0V)
- Data bus (D25)
I/O I/O Power supply (3.3V)
I/O Data bus (D24)
I/O Data bus (D23)
I/O Data bus (D22)
I/O Data bus (D21)
I/O Data bus (D20)
- GND
I/O Data bus (D19)
- VCC
I/O Data bus (D16)
I/O Data bus (D17)
I/O Data bus (D18)
I/O GND
I/O Data bus (D15)
I/O I/O Power supply (3.3V)
I/O Data bus (D14)
I/O Data bus (D13)
I/O Data bus (D12)
I/O Data bus (D11)
I/O Data bus (D10)
I/O Data bus (D9)
I/O Data bus (D8)
I/O Data bus (D7)
I/O Data bus (D6)
- I/O Power supply (0V)
I/O Data bus (D5)
I/O I/O Power supply (3.3V)
I/O Data bus (D4)
I/O Data bus (D3)
I/O Data bus (D2)
I/O Data bus (D1)
I/O Data bus (D0)
OUT Address bus (A0)
OUT Address bus (A1)
OUT Address bus (A2)
OUT Address bus (A3)
- I/O Power supply (0V)
OUT Address bus (A4)
- I/O Power supply (3.3V)
OUT Address bus (A5)
OUT Address bus (A6)
OUT Address bus (A7)
OUT Address bus (A8)
OUT Address bus (A9)
OUT Address bus (A10)
OUT Address bus (A11)
OUT Address bus (A12)
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