FIGURE 9. RECEIVER O
參數(shù)資料
型號: XR16L580IL28-F
廠商: Exar Corporation
文件頁數(shù): 7/49頁
文件大小: 0K
描述: IC UART FIFO 16B 28QFN
產(chǎn)品變化通告: XR(16L580IL28, XR20M1170IL28)(TR)-F Obsolescence 2/May/2011
標準包裝: 490
特點: *
通道數(shù): 1,UART
FIFO's: 16 字節(jié)
規(guī)程: RS232,RS422
電源電壓: 2.25 V ~ 5.5 V
帶自動流量控制功能:
帶IrDA 編碼器/解碼器:
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: 28-VFQFN 裸露焊盤
供應商設備封裝: 28-QFN 裸露焊盤(5x5)
包裝: 托盤
FIGURE 9. RECEIVER OPERATION IN NON-FIFO MODE
Receive Data Shift
Register (RSR)
Receive
Data Byte
and Errors
RHR Interrupt (ISR bit-2)
Receive Data
Holding Register
(RHR)
RXFIFO1
16X Clock
Receive Data Characters
Data Bit
Validation
Error
Tags in
LSR bits
4:2
FIGURE 10. RECEIVER OPERATION IN FIFO AND AUTO RTS FLOW CONTROL MODE
Receive Data Shift
Register (RSR)
RXFIFO1
16X Clock
E
rror
Tags
(16-sets)
E
rror
Tags
in
LS
R
b
its
4:2
16 bytes by 11-bit
wide
FIFO
Receive Data Characters
FIFO Trigger=8
Example
:
RX FIFO trigger level selected at 8 bytes
Data fills to
14
Data falls to
4
Data Bit
Validation
Receive
Data FIFO
Receive
Data
Receive Data
Byte and Errors
RHR Interrupt (ISR bit-2) programmed for
desired FIFO trigger level.
FIFO is Enabled by FCR bit-0=1
RTS# de-asserts when data fills above the flow
control trigger level to suspend remote transmitter.
Enable by EFR bit-6=1, MCR bit-1.
RTS# re-asserts when data falls below the flow
control trigger level to restart remote transmitter.
Enable by EFR bit-6=1, MCR bit-1.
XR16L580
15
REV. 1.4.2
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
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