參數(shù)資料
型號: XRT16C854
廠商: Exar Corporation
英文描述: 2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
中文描述: 2.97V至5.5V四路UART的128字節(jié)FIFO
文件頁數(shù): 46/54頁
文件大?。?/td> 485K
代理商: XRT16C854
XR16C854/854D
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
xr
REV. 3.0.1
46
F
IGURE
20. R
ECEIVE
R
EADY
& I
NTERRUPT
T
IMING
[N
ON
-FIFO M
ODE
]
FOR
C
HANNELS
A-D
F
IGURE
21. T
RANSMIT
R
EADY
& I
NTERRUPT
T
IMING
[N
ON
-FIFO M
ODE
]
FOR
C
HANNELS
A-D
RX
RXRDY#
IOR#
(Reading data
out of RHR)
INT
D0:D7
Start
Bit
D0:D7
Stop
Bit
D0:D7
T
SSR
1 Byte
in RHR
Active
Data
Ready
Active
Data
Ready
Active
Data
Ready
1 Byte
in RHR
1 Byte
in RHR
T
SSR
T
SSR
RXNFM
T
RR
T
RR
T
RR
T
SSR
T
SSR
T
SSR
TX
(Unloading)
TXRDY#
IOW#
(Loading data
into THR)
INT*
D0:D7
Start
Bit
D0:D7
Stop
Bit
D0:D7
T
WT
TXNonFIFO
T
WT
T
WT
T
WRI
T
WRI
T
WRI
T
SRT
T
SRT
T
SRT
*INT is cleared when the ISR is read or when data is loaded into the THR.
ISR is read
ISR is read
ISR is read
IER[1]
enabled
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