REV. 1.1.0 I2C/SPI UART WITH 64-BYTE FIFO 3.0 UART INTERNAL REGISTERS The complete register set is shown below in Table 7 and Tabl" />
參數(shù)資料
型號(hào): XR20M1170IL16TR-F
廠商: Exar Corporation
文件頁(yè)數(shù): 16/56頁(yè)
文件大?。?/td> 0K
描述: IC UART FIFO I2C/SPI 64B 16QFN
標(biāo)準(zhǔn)包裝: 3,000
特點(diǎn): *
通道數(shù): 1,UART
FIFO's: 64 字節(jié)
規(guī)程: RS485
電源電壓: 2.25 V ~ 3.6 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: 16-VQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 16-QFN-EP(4x4)
包裝: 帶卷 (TR)
XR20M1170
23
REV. 1.1.0
I2C/SPI UART WITH 64-BYTE FIFO
3.0 UART INTERNAL REGISTERS
The complete register set is shown below in Table 7 and Table 8.
TABLE 7: UART INTERNAL REGISTER ADDRESSES
ADDRESS
REGISTER
READ/WRITE
COMMENTS
16C550 COMPATIBLE REGISTERS
0X00
RHR - Receive Holding Register
THR - Transmit Holding Register
Read-only
Write-only
LCR[7] = 0
0X00
DLL - Divisor LSB
Read/Write
LCR[7] = 1, LCR
≠ 0xBF
0X01
DLM - Divisor MSB
Read/Write
0X02
DLD - Divisor Fractional
Read/Write
LCR[7] = 1, LCR
≠ 0xBF,
EFR[4] = 1
0X01
IER - Interrupt Enable Register
Read/Write
LCR[7] = 0
0X02
ISR - Interrupt Status Register
FCR - FIFO Control Register
Read-only
Write-only
0X03
LCR - Line Control Register
Read/Write
0X04
MCR - Modem Control Register
Read/Write
LCR
≠ 0xBF
0X05
LSR - Line Status Register
Read-only
0X06
MSR - Modem Status Register
Read-only
See
0X07
SPR - Scratch Pad Register
Read/Write
See
0X06
TCR - Transmission Control Register
Read/Write
See
0X07
TLR - Trigger Level Register
Read/Write
See
0X08
TXLVL - Transmit FIFO Level
Read-only
LCR[7] = 0
0x09
RXLVL - Receive FIFO Level
Read-only
0x0A
IODir - GPIO Direction Control Register
Read/Write
0x0B
IOState - GPIO State Register
Read/Write
0x0C
IOIntEna - GPIO Interrupt Enable Register
Read/Write
0x0D
Reserved
-
0x0E
IOControl - GPIO Control Register
Read/Write
0x0F
EFCR - Extra Features Control Register
Read/Write
0x02
EFR - Enhanced Function Register
Read/Write
LCR = 0xBF
0x04
Xon-1 - Xon Character 1
Read/Write
0x05
Xon-2 - Xon Character 2
Read/Write
0x06
Xoff-1 - Xoff Character 1
Read/Write
0x07
Xoff-2 - Xoff Character 2
Read/Write
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