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参数资料
型号： XR16M2752IL-0A-EB
厂商： Exar Corporation
文件页数： 46/51页
文件大小： 0K
描述： EVAL BOARD FOR M2752-A 32QFN
标准包装： 1
系列： *
XR16M2752
I
REV. 1.0.0
1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
TABLE OF CONTENTS
GENERAL DESCRIPTION................................................................................................ 1
APPLICATIONS .............................................................................................................................................. 1
FEATURES .................................................................................................................................................... 1
FIGURE 1. XR16M2752 BLOCK DIAGRAM ........................................................................................................................................ 1
FIGURE 2. PIN OUT ASSIGNMENT ..................................................................................................................................................... 2
ORDERING INFORMATION .............................................................................................................................. 2
PIN DESCRIPTIONS ........................................................................................................ 3
1.0 PRODUCT DESCRIPTION ...................................................................................................................... 6
2.0 FUNCTIONAL DESCRIPTIONS .............................................................................................................. 7
2.1 CPU INTERFACE ................................................................................................................................................ 7
FIGURE 3. XR16L2750 DATA BUS INTERCONNECTIONS.................................................................................................................... 7
2.2 DEVICE RESET ................................................................................................................................................... 7
2.3 DEVICE IDENTIFICATION AND REVISION ....................................................................................................... 7
2.4 CHANNEL A AND B SELECTION ...................................................................................................................... 7
TABLE 1: CHANNEL A AND B SELECT ............................................................................................................................................... 8
2.5 CHANNEL A AND B INTERNAL REGISTERS ................................................................................................... 8
2.6 DMA MODE ......................................................................................................................................................... 8
TABLE 2: TXRDY# AND RXRDY# OUTPUTS IN FIFO AND DMA MODE ............................................................................................. 8
2.7 INTA AND INTB OUTPUTS................................................................................................................................. 9
TABLE 3: INTA AND INTB PINS OPERATION FOR TRANSMITTER ........................................................................................................ 9
TABLE 4: INTA AND INTB PIN OPERATION FOR RECEIVER ............................................................................................................... 9
2.8 CRYSTAL OSCILLATOR OR EXTERNAL CLOCK INPUT................................................................................ 9
FIGURE 4. TYPICAL OSCILLATOR CONNECTIONS................................................................................................................................. 9
2.9 PROGRAMMABLE BAUD RATE GENERATOR WITH FRACTIONAL DIVISOR ........................................... 10
FIGURE 5. BAUD RATE GENERATOR ............................................................................................................................................... 11
TABLE 5: TYPICAL DATA RATES WITH A 24 MHZ CRYSTAL OR EXTERNAL CLOCK AT 16X SAMPLING ................................................... 11
2.10 TRANSMITTER................................................................................................................................................ 12
2.10.1 TRANSMIT HOLDING REGISTER (THR) - WRITE ONLY......................................................................................... 12
2.10.2 TRANSMITTER OPERATION IN NON-FIFO MODE .................................................................................................. 12
FIGURE 6. TRANSMITTER OPERATION IN NON-FIFO MODE .............................................................................................................. 12
2.10.3 TRANSMITTER OPERATION IN FIFO MODE ........................................................................................................... 12
FIGURE 7. TRANSMITTER OPERATION IN FIFO AND FLOW CONTROL MODE ..................................................................................... 13
2.11 RECEIVER ....................................................................................................................................................... 13
2.11.1 RECEIVE HOLDING REGISTER (RHR) - READ-ONLY ............................................................................................ 13
FIGURE 8. RECEIVER OPERATION IN NON-FIFO MODE .................................................................................................................... 14
FIGURE 9. RECEIVER OPERATION IN FIFO AND AUTO RTS FLOW CONTROL MODE ......................................................................... 14
2.12 AUTO RTS (HARDWARE) FLOW CONTROL ................................................................................................ 15
2.13 AUTO RTS HYSTERESIS .............................................................................................................................. 15
2.14 AUTO RS485 HALF-DUPLEX CONTROL ..................................................................................................... 15
2.15 AUTO CTS FLOW CONTROL........................................................................................................................ 15
FIGURE 10. AUTO RTS AND CTS FLOW CONTROL OPERATION....................................................................................................... 16
2.16 AUTO XON/XOFF (SOFTWARE) FLOW CONTROL...................................................................................... 17
TABLE 6: AUTO XON/XOFF (SOFTWARE) FLOW CONTROL ............................................................................................................... 17
2.17 SPECIAL CHARACTER DETECT.................................................................................................................. 17
2.18 INFRARED MODE ........................................................................................................................................... 18
FIGURE 11. INFRARED TRANSMIT DATA ENCODING AND RECEIVE DATA DECODING.......................................................................... 18
2.19 SLEEP MODE WITH AUTO WAKE-UP ......................................................................................................... 19
2.20 INTERNAL LOOPBACK................................................................................................................................. 20
FIGURE 12. INTERNAL LOOP BACK IN CHANNEL A AND B ................................................................................................................ 20
3.0 UART INTERNAL REGISTERS............................................................................................................. 21
TABLE 7: UART INTERNAL REGISTERS .......................................................................................................................................... 21
TABLE 8: INTERNAL REGISTERS DESCRIPTION. SHADED BITS ARE ENABLED WHEN EFR BIT-4=1 .................................................... 22
4.0 INTERNAL REGISTERS DESCRIPTIONS............................................................................................ 23
4.1 RECEIVE HOLDING REGISTER (RHR) - READ- ONLY .................................................................................. 23
4.2 TRANSMIT HOLDING REGISTER (THR) - WRITE-ONLY ............................................................................... 23
4.3 INTERRUPT ENABLE REGISTER (IER) - READ/WRITE ................................................................................ 23
4.3.1 IER VERSUS RECEIVE FIFO INTERRUPT MODE OPERATION ............................................................................... 24
4.3.2 IER VERSUS RECEIVE/TRANSMIT FIFO POLLED MODE OPERATION.................................................................. 24
4.4 INTERRUPT STATUS REGISTER (ISR) - READ-ONLY .................................................................................. 25
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XR16M2752IL-0B-EB 功能描述:界面开发工具 Eval Board for XR16M2752IL Series RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V
XR16M2752IL32 制造商:EXAR 制造商全称:EXAR 功能描述:1.62V TO 3.63V HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
XR16M2752IL32-F 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel
XR16M2752IL32TR-F 制造商:Exar Corporation 功能描述:UART 2-CH 64Byte FIFO 1.8V/2.5V/3.3V 32-Pin QFN EP T/R 制造商:Exar Corporation 功能描述:XR16M2752IL32TR-F
XR16M554 制造商:EXAR 制造商全称:EXAR 功能描述:1.62V TO 3.63V QUAD UART WITH 16-BYTE FIFO
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