FIGURE 20. RECEIVE R
參數(shù)資料
型號: XR19L400IL40TR-F
廠商: Exar Corporation
文件頁數(shù): 39/46頁
文件大?。?/td> 0K
描述: IC UART/TXRX RS485 40QFN
標(biāo)準(zhǔn)包裝: 3,000
特點: *
通道數(shù): 1,UART
FIFO's: 64 字節(jié)
規(guī)程: RS485
電源電壓: 3.3V,5V
帶自動流量控制功能:
帶故障啟動位檢測功能:
帶調(diào)制解調(diào)器控制功能:
帶CMOS:
安裝類型: 表面貼裝
封裝/外殼: 40-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 40-QFN 裸露焊盤(6x6)
包裝: 帶卷 (TR)
FIGURE 20. RECEIVE 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)
FIGURE 21. TRANSMIT READY INTERRUPT TIMING [FIFO MODE]
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.
XR19L400
44
SINGLE CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER
REV. 1.0.3
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