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VR4102 Datasheet(PDF) 484 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) 484 Page - NEC

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CHAPTER 25 HSP (MODEM INTERFACE UNIT)
484
25.2.1 HSP Initialize Register
(1) HSPINIT (0x0C00 0020)
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
OPD
AFESEL
BYTE
BSC
HSPRST
R/W
R
R
R
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[15:5]
Reserved
Write 0 when writing. 0 is returned after read.
D[4]
OPD
Power-down CODEC (indicates OPD# pin’s state)
1 : High level
0 : Low level
D[3]
AFESEL
CODEC interface mode switch
1 : ST7546, STLC7546(SGS), T7525(AT)
0 : TLC320C44, TLC320AC01/02(TI)
D[2]
BYTE
HSP data bus width setting
1 : 8 bits
0 : 16 bits
D[1]
BSC
CODEC interface control
1 : Normal
0 : Initial value
D[0]
HSPRST
HSP unit reset (same as hardware reset)
1 : Reset
0 : Do not reset
This register is used to control the HSP.
BSC bit is used to control the CODEC interface. This bit must be set to 1 when using the HSP.
The hardware reset and the reset by the HSPRST bit result the same function.



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