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VR4102 Datasheet(PDF) 433 Page - NEC

Part # VR4102
Description  64/32-bit Microprocessor
PDF  701 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

VR4102 Datasheet(HTML) 433 Page - NEC

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CHAPTER 21 KIU (KEYBOARD INTERFACE UNIT)
433
21.2.8 KIUGPEN (0x0B00 019C)
Bit
D15
D14
D13
D12
D11
D10
D9
D8
Name
Reserved
Reserved
Reserved
Reserved
KGPEN[11]
KGPEN[10]
KGPEN[9]
KGPEN[8]
R/W
R
R
R
R
R/W
R/W
R/W
R/W
RTCRST
0
0
0
0
0
0
0
0
Other resets
0
0
0
0
0
0
0
0
Bit
D7
D6D5
D4D3D2
D1
D0
Name
KGPEN[7]
KGPEN[6]
KGPEN[5]
KGPEN[4]
KGPEN[3]
KGPEN[2]
KGPEN[1]
KGPEN[0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RTCRST
0
0
0
0
0
0
0
0
Other resets
0
0
0
0
0
0
0
0
Bit
Name
Function
D[15..12]
Reserved
Write 0 when writing. 0 is returned after a read.
D[11..0]
KGPEN[11..0]
SCAN pin function
1 : Use as output port
0 : Use as SCAN pin
This register is used to set whether or not the KSCAN pins will function as a general-purpose output port.
Setting a “1” to each bit in this register enables the KSCAN pin to function as a general-purpose output port.
The output port setting are made via the GIU’s GIUPODATL register (0x0B00 011C).



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