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VR4102 Datasheet(PDF) 427 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) 427 Page - NEC

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CHAPTER 21 KIU (KEYBOARD INTERFACE UNIT)
427
21.2.3 KIUSCANS (0x0B00 0192)
Bit
D15
D14
D13
D12
D11
D10
D9
D8
Name
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
R/W
R
RR
RRR
R
R
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
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
SSTAT[1]
SSTAT[0]
R/W
R
RR
RRR
R
R
RTCRST
0
0
0
0
0
0
0
0
Other resets
0
0
0
0
0
0
0
0
Bit
Name
Function
D[15..2]
Reserved
Write 0 when writing. 0 is returned after a read.
D[1..0]
SSTAT[1..0]
KIU sequencer status
11 : Scanning
10 : Interval Next Scan
01 : WaitKeyIn
00 : Stopped
This register indicates the current KIU sequencer status.



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