W681307 Datasheet, PDF (51/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM

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