TABLE 16: UAR" />
參數(shù)資料
型號(hào): XR19L222IL64-F
廠商: Exar Corporation
文件頁(yè)數(shù): 35/53頁(yè)
文件大小: 0K
描述: IC UART/TXRX RS232 64QFN
標(biāo)準(zhǔn)包裝: 260
特點(diǎn): *
通道數(shù): 2,DUART
FIFO's: 64 字節(jié)
規(guī)程: RS232
電源電壓: 3.3 V ~ 5.5 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: 64-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 64-QFN(9x9)
包裝: 托盤
XR19L222
40
TWO CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. 1.0.1
TABLE 16: UART RESET CONDITIONS FOR CHANNEL A AND B
REGISTERS
RESET STATE
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
RESET STATE
TXDA/TXDB
RS-232 LOW or +5V
RTSA/RTSB
RS-232 LOW or +5V
DTRA/DTRB
RS-232 LOW or +5V
TXB
CMOS/TTL HIGH (or VCC)
INT
(IRQ#)
Three-State Condition (16 mode)
CMOS/TTL HIGH (68 mode)
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