FIGURE 18." />
參數(shù)資料
型號: XR19L200IL32-0A-EB
廠商: Exar Corporation
文件頁數(shù): 30/40頁
文件大?。?/td> 0K
描述: EVAL BOARD FOR XR19L200 32QFN
標(biāo)準包裝: 1
系列: *
XR19L200
36
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. 1.0.2
FIGURE 18. RECEIVE READY INTERRUPT TIMING [FIFO MODE]
FIGURE 19. TRANSMIT READY INTERRUPT TIMING [FIFO MODE]
RX
INT
D0:D7
S
T
SSR
RXINTDMA#
RX FIFO fills up to RX
Trigger Level or RX Data
Timeout
RX FIFO drops
below RX
Trigger Level
D0:D7
S
D0:D7
T
D0:D7
S
D0:D7
S
T
D0:D7
S
T
D0:D7
S
T
Start
Bit
Stop
Bit
T
SSI
IOR#
T
RRI
(Reading data out
of RX FIFO)
TX
INT*
TX INT
D0:D7
S
D0:D7
T
D0:D7
S
D0:D7
S
T
D0:D7
S
T
D0:D7
S
T
Start
Bit
Stop
Bit
T
WRI
Last Data Byte
Transmitted
TX FIFO fills up
to trigger level
TX FIFO drops
below trigger level
TX FIFO
Empty
T
S
T
SI
ISR is read
IER[1]
enabled
ISR is read
IOW#
(Loading data
into FIFO)
*INT is cleared when the ISR is read or when TX FIFO fills up to the trigger level.
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