W681307 Datasheet, PDF (52/160 Pages) Winbond – USB1.1 CODEC Microprocessor Control Unit with 32KB Mask ROM and 4KB RAM

W681307
Address
Name
1455H
KeyIoOpC
Sysclock2
1456H
KeyIoMskR
Sysclock2
1457H
KeyIoMskC
Sysclock2
1458H
KeyPress
Location
Read Only
1459H KeyPadSize
Description
Bit
Description
0
1
Key IO Port Output
Data Register
Value =True
2
3
4
5
6
7
0
1
Key IO Port Control 2
Register For Mask
3
0= off=masked
4
1= on=unmasked
5
6
7
0
1
Key IO Port Control 2
Register For Mask
3
0=off=masked
4
1=on=unmasked
5
6
7
0
1
Gives the Row and
2
column
3
4
5
Shows “1” when 6
KeyPad is pressed
7
0
1
Sets the size of the
2
Keypad scanned by 3
the Keypad Scanner 4
function
5
6
7
KeyIoOC[0]
KeyIoOC[1]
KeyIoOC[2]
KeyIoOC[3]
Reserved
Reserved
Reserved
Reserved
KeyIoM[0]
KeyIoM[1]
KeyIoM[2]
KeyIoM[3]
KeyIoM[4]
Reserved
Reserved
Reserved
KeyIoM[0]
KeyIoM[1]
KeyIoM[2]
KeyIoM[3]
Reserved
Reserved
Reserved
Reserved
KeyLocR[0]
KeyLocR[1]
KeyLocR[2]
KeyLocC[0]
KeyLocC[1]
KeyLocC[2]
KeyPressed
Reserved
KeyRows[0]
KeyRows[1]
KeyRows[2]
KeyColumn[0]
KeyColumn[1]
KeyColumn[2]
KeyDb[0]
KeyDb[1]
Value at
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Physical
Mapping to
output ports
Col[0]
Col[1]
Col[2]
Col[3]
Row[0]
Row[1]
Row[2]
Row[3]
Row[4]
Col[0]
Col[1]
Col[2]
Col[3]
0
0
0
0
0
0
0
0
0
The Timer1sReset bit and watchdog time bits cannot be altered once the watchdog is enabled.
The watchdog is reset every time the location WatchDogKick is written to.
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Publication Release Date: May, 2007
Revision 1.3