TABLE 16: UART RESET CONDITIONS FOR CHANNEL A AND B DLM, DLL DLM = 0x00 and DLL " />
參數(shù)資料
型號： XR19L402IL48-F
廠商： Exar Corporation
文件頁數(shù)： 33/49頁
文件大?。?/td> 0K
描述： IC UART/TXRX RS485 48QFN
標(biāo)準(zhǔn)包裝： 260
特點： *
通道數(shù)： 2，DUART
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： 是
帶IrDA 編碼器/解碼器： 是
帶故障啟動位檢測功能： 是
帶調(diào)制解調(diào)器控制功能： 是
帶CMOS： 是
安裝類型： 表面貼裝
封裝/外殼： 48-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-QFN-EP（7x7）
包裝： 托盤
TABLE 16: UART RESET CONDITIONS FOR CHANNEL A AND B
DLM, DLL
DLM = 0x00 and DLL = 0x01. Only resets to these values during a power up.
They do not reset when the Reset Pin is asserted.
DLD
Bits 7-0 = 0x00
RHR
Bits 7-0 = 0xXX
THR
Bits 7-0 = 0xXX
IER
Bits 7-0 = 0x00
FCR
Bits 7-0 = 0x00
ISR
Bits 7-0 = 0x01
LCR
Bits 7-0 = 0x00
MCR
Bits 7-0 = 0x00
LSR
Bits 7-0 = 0x60
MSR
Bits 3-0 = Logic 0
Bits 7-4 = Logic levels of the inputs inverted
SPR
Bits 7-0 = 0xFF
EMSR
Bits 7-0 = 0x80
FLVL
Bits 7-0 = 0x00
TRG
Bits 7-0 = 0x00
FC
Bits 7-0 = 0x00
FCTR
Bits 7-0 = 0x00
EFR
Bits 7-0 = 0x00
XON1
Bits 7-0 = 0x00
XON2
Bits 7-0 = 0x00
XOFF1
Bits 7-0 = 0x00
XOFF2
Bits 7-0 = 0x00
I/O SIGNALS
TXA/TXB
RS-485 LOW
RXA/RXB
RS-485 LOW
TXB
CMOS/TTL HIGH (or VCC)
INT
(IRQ#)
Three-State Condition (16 mode)
CMOS/TTL HIGH (68 mode)
XR19L402
39
REV. 1.0.3
TWO CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER
REGISTERS
RESET STATE
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