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W681307DG Datasheet, PDF (51/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM. | |||
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W681307
9.3
Keypad Control Registers
Address
Name
1450H
KeyIoDR
Sysclock2
1451H
KeyIoDC
Sysclock2
1452H
KeyIoIpR
Sysclock2
1453H
KeyIoIpC
Sysclock2
1454H
KeyIoOpR
Sysclock2
Description
Bit
0
1
Key IO Port Direction
Control Register
0 = output
2
3
4
1 = input(Default)
5
6
7
0
1
Key IO Port
2
Direction Control
Register
3
0 = output
4
1 = input
5
6
7
0
1
Key IO Port Input
Data Register
Value =True
2
3
4
5
6
7
0
1
Key IO Port Input
Data Register
Value =True
2
3
4
5
6
7
0
1
Key IO Port Output
Data Register
2
3
Value =True
4
5
6
7
Description
KeyIoDR[0]
KeyIoDR[1]
KeyIoDR[2]
KeyIoDR[3]
KeyIoDR[4]
Reserved
Blocked
(for test modes)
Reserved
KeyIoDC[0]
KeyIoDC[1]
KeyIoDC[2]
KeyIoDC[3]
Reserved
Reserved
Reserved
Reserved
KeyIoIR[0]
KeyIoIR[1]
KeyIoIR[2]
KeyIoIR[3]
KeyIoIR[4]
Reserved
Reserved
Reserved
KeyIoIC[0]
KeyIoIC[1]
KeyIoIC[2]
KeyIoIC[3]
Reserved
Reserved
Reserved
Reserved
KeyIoOR[0]
KeyIoOR[1]
KeyIoOR[2]
KeyIoOR[3]
KeyIoOR[4]
Reserved
Reserved
Reserved
Value at
Reset
1
1
1
1
1
1
0
Physical
Mapping to
output ports
Row[0]
Row[1]
Row[2]
Row[3]
Row[4]
1
1
Col[0]
1
Col[1]
1
Col[2]
1
Col[3]
1
1
1
1
0
Row[0]
0
Row[1]
0
Row[2]
0
Row[3]
0
Row[4]
0
0
0
0
Col[0]
0
Col[1]
0
Col[2]
0
Col[3]
0
0
0
0
0
Row[0]
0
Row[1]
0
Row[2]
0
Row[3]
0
Row[4]
0
0
0
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Publication Release Date: May, 2007
Revision 1.3
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