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參數資料
型號: W83877AF
廠商: WINBOND ELECTRONICS CORP
元件分類: 外設及接口
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: 64/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Sep. 1996
Preliminary Version 0.50
- 62 -
Bit 6
MIR, FIR modes:
UNDRN - Underrun
Set to 1 when transmitter is empty
and
not set S_FEND (in this register bit 3) operated in
PIO mode or not TC (Terminal Count) operated in DMA mode. Clear to 0 when write to 1.
MIR, FIR modes:
Bit 5
RX_BSY - Receiver Busy
Set to 1 when receiver is busy or active in process.
Remote IR mode:
RX_IP - Receiver in Process
Set to 1 when receiver is in process.
Bit 4:
MIR, FIR modes:
LST_FE - Lost Frame End
Set to 1 when a frame end in a entire frame is lost. Clear to 0 when read this register.
Remote IR modes:
RX_PD - Receiver Pulse Detected
Set to 1 when one or more than one remote pulses are detected. Clear to 0 when read
this register.
MIR, FIR modes:
Bit 3
S_FEND - Set a Frame End
Write to 1 when want to terminal the frame, that is, the procedure of PIO command is
An Entire Frame = Write Frame Data (First) + Write S_FEND (Last)
This bit should be set to 1, if use in PIO mode, to avoid transmitter underrun. Note that
this bit S_FEND is set to 1 that is equivalent to TC (Terminal Count) in DMA mode. So
that this bit should be set to 0 in DMA mode.
Reserved.
MIR, FIR modes:
Bit 2:
Bit 1:
LB_SF - Last Byte Stay in FIFO
Set to 1 that indicates one or more than one frame end still stay in receiver FIFO.
Bit 0:
MIR, FIR, Remote IR modes:
RX_TO - Receiver FIFO or Frame Status FIFO time-out
Set to 1 when receiver FIFO
or
frame status FIFO occurs time-out
相關PDF資料
PDF描述
W83877ATD enhanced version from Winbonds most popular I/O chip W83877F
W83877ATF enhanced version from Winbonds most popular I/O chip W83877F
W83877 WINBOND I/O
W83877F WINBOND I/O
W83877TD I/O chip disk drive adapter
相關代理商/技術參數
參數描述
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
W83877F 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83877TD 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O
W83877TF 制造商:WINBOND 制造商全稱:Winbond 功能描述:WINBOND I/O