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VR4102 Datasheet(PDF) 462 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) 462 Page - NEC

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CHAPTER 24 SIU (SERIAL INTERFACE UNIT)
462
24.2.1 SIURB (0x0C00 0000: LCR[7] = 0, Read)
Bit
D7
D6D5
D4D3D2
D1
D0
Name
RXD[7]
RXD[6]
RXD[5]
RXD[4]
RXD[3]
RXD[2]
RXD[1]
RXD[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[7..0]
RXD[7..0]
Serial receive data
This register stores receive data used in serial communications.
To access this register, set LCR[7] (bit 7 of SIULC register) to 0.
24.2.2 SIUTH (0x0C00 0000: LCR[7] = 0, Write)
Bit
D7
D6D5
D4D3D2
D1
D0
Name
TXD[7]
TXD[6]
TXD[5]
TXD[4]
TXD[3]
TXD[2]
TXD[1]
TXD[0]
R/W
W
WW
WWW
W
W
RTCRST
0
0
0
0
0
0
0
0
Other resets
0
0
0
0
0
0
0
0
Bit
Name
Function
D[7..0]
TXD[7..0]
Serial transmit data
This register stores transmit data used in serial communications.
To access this register, set LCR[7] (bit 7 of SIULC register) to 0.



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