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參數(shù)資料
型號: 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): 75/171頁
文件大小: 1634K
代理商: W83877AF
W83877AF
Publication Release Date: Sep. 1996
Preliminary Version 0.50
- 73 -
Bit 7:
FSFDR - Frame Status FIFO Data Ready
Indicated that have a valid data in frame status FIFO bottom.
Bit 6:
LST_FR - Lost Frame
Set to 1 when one or more than one frame has been lost.
Bit 5:
Bit 4:
Reserved
.
MX_LEX - Maximum Frame Length Exceed
Set to 1 when exceed programmed maximum frame length defined Set4.Reg6 and
Set4.Reg7. This bit is frame status FIFO bottom. To read this bit will return a valid value
when FSFDR=1 (Frame Status FIFO Data Ready).
Bit 3:
PHY_ERR - Physical Error
During receiving data, any physical layer error, defined IrDA 1.1, will be set to 1 in this bit.
This bit is frame status FIFO bottom. To read this bit will return a valid value when
FSFDR=1 (Frame Status FIFO Data Ready).
Bit 2:
CRC_ERR - CRC Error
Set to 1 when receive a bad CRC in a frame. This CRC belongs to physical layer defined in
IrDA 1.1. This bit is frame status FIFO bottom. To read this bit will return a valid value when
FSFDR=1 (Frame Status FIFO Data Ready).
Bit 1:
RX_OV - Received Data Overrun
Set to 1 when Received data in FIFO occur overrun.
Bit 0:
FSF_OV - Frame Status FIFO Overrun
Set to 1 When frame status FIFO occur overrun.
4.3.7.5 Set5.Reg6, 7 - Receiver Frame Length FIFO (RFLFL/RFLFH) or Lost Frame Number
(LST_NU)
Reg.
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RFLFL/
LST_NU
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Reset Value
0
0
0
0
0
0
0
0
RFLFH
-
-
-
Bit 12
Bit 11
Bit 10
Bit 9
Bit 8
Reset Value
0
0
0
0
0
0
0
0
Receiver Frame Length FIFO (RFLFL/RFLFH):
These registers are 13-bit. Read these registers will return received frame length. When read the
register of
RFLFH
will pop-up another frame status and frame length if FSFDR=1 (Set5.Reg4.Bit7).
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