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VR4102 Datasheet(PDF) 489 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) 489 Page - NEC

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CHAPTER 25 HSP (MODEM INTERFACE UNIT)
489
(5) HSPFFSZ (0x0C00 0022: Index 4, Write)
Bit
D15
D14
D13
D12
D11
D10
D9
D8
Name
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
R/W
W
WW
WWW
W
W
RTCRST
Undefined
Undefined
Undefined
0
0
0
0
0
Other resets
Undefined
Undefined
Undefined
0
0
0
0
0
Bit
D7
D6D5
D4D3D2
D1
D0
Name
Reserved
Reserved
FFSZ5
FFSZ4
FFSZ3
FFSZ2
FFSZ1
FFSZ0
R/W
W
WW
WWW
W
W
RTCRST
Undefined
Undefined
1
0
0
0
0
0
Other resets
Undefined
Undefined
1
0
0
0
0
0
Bit
Name
Function
D[15:6]
Reserved
Write 0 when writing.
D[5:0]
FFSZ[5:0]
FIFO size control
When the INDEX number is 4, this register is used to set the transmit/receive buffer size, and can be set up to
32 (0x20). If buffer-full interrupt is enabled, an interrupt will occur when the data in the transmit/receive buffer
reaches to the size set in this register.



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