參數(shù)資料
型號(hào): XR20M1172IL32-F
廠商: Exar Corporation
文件頁(yè)數(shù): 14/55頁(yè)
文件大?。?/td> 0K
描述: IC UART FIFO I2C/SPI 64B 32QFN
標(biāo)準(zhǔn)包裝: 490
特點(diǎn): *
通道數(shù): 2,DUART
FIFO's: 64 字節(jié)
規(guī)程: RS485
電源電壓: 1.62 V ~ 3.63 V
帶自動(dòng)流量控制功能:
帶IrDA 編碼器/解碼器:
帶故障啟動(dòng)位檢測(cè)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: 32-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 32-QFN 裸露焊盤(5x5)
包裝: 托盤
其它名稱: 1016-1477
XR20M1172IL32-F-ND
XR20M1172
21
REV. 1.2.0
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO
2.14.2
Auto Address Detection
Auto address detection mode is enabled when EFCR bit-0 = 1 and EFR bit-5 = 1. The desired slave address
will need to be written into the XOFF2 register. The receiver will try to detect an address byte that matches the
porgrammed character in the XOFF2 register. If the received byte is a data byte or an address byte that does
not match the programmed character in the XOFF2 register, the receiver will discard these data.
Upon
receiving an address byte that matches the XOFF2 character, the receiver will be automatically enabled if not
already enabled, and the address character is pushed into the RX FIFO along with the parity bit (in place of the
parity error bit). The receiver also generates an LSR interrupt. The receiver will then receive the subsequent
data. If another address byte is received and this address does not match the programmed XOFF2 character,
then the receiver will automatically be disabled and the address byte is ignored. If the address byte matches
XOFF2, the receiver will put this byte in the RX FIFO along with the parity bit in the parity error bit.
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相關(guān)代理商/技術(shù)參數(shù)
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