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參數(shù)資料
型號(hào): W83877AF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設(shè)及接口
英文描述: Multi-Function I/O Port Controller(多功能輸入/輸出口控制器)
中文描述: MULTIFUNCTION PERIPHERAL, PQFP100
封裝: QFP-100
文件頁數(shù): 62/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Sep. 1996
Preliminary Version 0.50
- 60 -
Bit 2:
MIR, FIR modes:
EN_DMA - Enable DMA
Enable DMA function to transmission or receiving. Before using this, the DMA channel
should be select. If set RX DMA channel and disable TX DMA channel then the single
DMA channel is used. In the single channel system, the bit of D_CHSW (DMA channel
swap, in Set 2.Reg2.Bit3) will determine RX DMA channel or TX DMA channel.
Other modes:
Not used.
Bit 1, 0:
RTS, DTR
Functional definitions is same as legacy UART mode.
4.3.2.6 Set0.Reg5 - UART Status Register (USR)
Mode
B7
B6
B5
B4
B3
B2
B1
B0
Legacy
UART
RFEI
TSRE
TBRE
SBD
NSER
PBER
OER
RDR
Advanced
UART
LB_INFR
TSRE
TBRE
MX_LEX PHY_ERR CRC_ERR
OER
RDR
Reset Value
0
0
0
0
0
0
0
0
Legacy UART Register:
These registers are defined same as previous description.
Advanced UART Register:
Bit 7:
MIR, FIR modes:
LB_INFR - Last Byte In Frame End
Set to 1 when a last byte of a frame is in the FIFO bottom. This bit indicates that separate
one frame from another frame when RX FIFO has more than one frame.
Same as legacy UART description.
MIR, FIR modes:
Bit 6, 5:
Bit 4:
MX_LEX - Maximum Frame Length Exceed
Set to 1 when frame length from the receiver has exceeded the programmed frame
length which is in SET4.Reg6 and Reg5.If this bit is set to 1, the receiver will not receive
any data to RX FIFO.
MIR, FIR modes:
Bit 3:
PHY_ERR - Physical Layer Error
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W83877ATD 制造商:WINBOND 制造商全稱:Winbond 功能描述:enhanced version from Winbonds most popular I/O chip W83877F
W83877ATF 制造商:WINBOND 制造商全稱:Winbond 功能描述:enhanced version from Winbonds most popular I/O chip W83877F
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W83877TF 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O