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PI7C9X752FAEX Datasheet(PDF) 30 Page - Diodes Incorporated

Part # PI7C9X752FAEX
Description  High Performance 1.62V To 3.6V Dual Uart with 64-Byte FIFO
PDF  47 Pages
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Manufacturer  DIODES [Diodes Incorporated]
Direct Link  http://www.diodes.com
Logo DIODES - Diodes Incorporated

PI7C9X752FAEX Datasheet(HTML) 30 Page - Diodes Incorporated

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www.diodes.com
April 2019
Diodes Incorporated
PI7C9X752
Document Number DS40312 Rev 3-2
A product Line of
Diodes Incorporated
PI7C9X752
Note: the default of MSR[7:4]= logic levels of the inputs inverted
Offset 07H(default=FFH)--- Scratch Pad Register (SPR). Accessible when LCR[7]=0 and MCR[6]=0.
Bit
Type
Description
[7:0]
RW
This is 8-bit general purpose register for the user to store temporary data. The content is preserved
during sleep mode.
Offset 00H(default=01H)--- Divisor Latch LSB(DLL). Accessible when LCR[7]=1 and LCR!=0xBF.
Bit
Type
Description
[7:0]
RW
LSB bits of divisor for baud rate generator.
Note: It is reset only when Power-On-Reset.
Offset 01H(default=00H)--- Divisor Latch MSB(DLM). Accessible when LCR[7]=1 and LCR!=0xBF.
Bit
Type
Description
[7:0]
RW
MSB bits of divisor for baud rate generator.
Note: It is reset only when Power-On-Reset.
Offset 02H(default=00H)--- Divisor Fractional Register (DLD). Accessible when EFR[4]=1,LCR[7]=1
Bit
Type
Description
7
RW
When set, enable IrDA (infrared) mode.
6
RW
When set, enable Auto RS-485 half-duplex mode.
[5:4]
RW
Sampling rate select:
00: 16X
01: 8X
1x: 4X
[3:0]
RW
Reserved
1
RO
Delta DSR# input flag
0 = No change on DSR# input
1 = The DSR# input has changed state. A modem status interrupt will be generated if MSR interrupt is
enabled.
0
RO
Delta CTS# input flag
0 = No change on CTS# input
1 = The CTS# input has changed state. A modem status interrupt will be generated if MSR interrupt is
enabled.
Note: Pre_Scaler = 2**(2*MCR[7])
Baud_Rate = XIN / ((256*DLM+DLL)*Pre_Scaler*(16-12*DLD[5])), when DLD[5]=1 or
Baud_Rate = XIN / ((256*DLM+DLL)*Pre_Scaler*(16-8*DLD[4])), when DLD[5]=0 or
Baud_Rate = XIN / ((256*DLM+DLL)*Pre_Scaler*(16-SCR+CPR)), when DLD=8'h00



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