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VR4102 Datasheet(PDF) 512 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) 512 Page - NEC

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CHAPTER 26 FIR (FAST IrDA INTERFACE UNIT)
512
26.2.12 DMACR (0x0C00 0062)
Bit
D15
D14
D13
D12
D11
D10
D9
D8
Name
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
R/W
RRR
RR
RR
R
RTCRST
000
00
00
0
Other resets
0
0
0
0
0
0
0
0
Bit
D7D6D5
D4D3
D2D1
D0
Name
ACES_MD
TRANS_MD
Reserved
Reserved
Reserved
DEMAND2
DEMAND1
DEMAND0
R/W
R/W
R/W
R
R
R
R/W
R/W
R/W
RTCRST
000
00
00
0
Other resets
0
0
0
0
0
0
0
0
Bit
Name
Function
D15 to D8
Reserved
Write 0 when writing. 0 is returned after a read.
D7
ACES_MD
This bit is used to select the access mode. Write 0 when writing. 0 is returned
after a read.
D6
TRANS_MD
This bit is used to specify the transfer direction.
TRANS_MD
Transfer direction
0
1
Memory
o TDR
RDR
o Memory
D5 to D3
Reserved
Write 0 when writing. 0 is returned after a read.
D2 to D0
DEMAND2 to
These bits are used to specify the demand size.
DEMAND0
DEMAND2 to 0
Demand size
000
001
010
011
100
101
110
1
2
3
4
5
6
7
111
Free size
[Caution]
During the DMA operation (both the master side and IrDA side), the contents of this register must not be changed.



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