xr16m580im48 Exar Corporation, xr16m580im48 Datasheet - Page 36

• Manufacturer Part Number: xr16m580im48
• Description: 1.62v To 3.63v High Performance Uart With 16-byte Fifo
• Manufacturer: Exar Corporation

XR16M580
1.62V TO 3.63V HIGH PERFORMANCE UART WITH 16-BYTE FIFO
This register provides the advanced features of XR16M580. Lower four bits of this register are reserved.
Writing to the higher four bits enables additional functions.
MSR[3:0]: Reserved
MSR[4]: Enable/Disable Transmitter (Requires EFR[4] = 1)
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MSR[5]: Enable/Disable Receiver (Requires EFR[4] = 1)
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MSR[6]: Enable/Disable 9-bit mode (Requires EFR[4] = 1)
For the 9-bit mode information,
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MSR[7]: Enable/Disable fast IR mode (Requires EFR[4] = 1)
The M580 supports the new fast IR transmission with data rate up to 1.152 Mbps.
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This is a 8-bit general purpose register for the user to store temporary data. The content of this register is
preserved during sleep mode but becomes 0xFF (default) after a reset or a power off-on cycle.
4.10
4.11
Logic 0 = Enable Transmitter (default).
Logic 1 = Disable Transmitter.
Logic 0 = Enable Receiver (default).
Logic 1 = Disable Receiver.
Logic 0 = Normal 8-bit mode (default).
Logic 1 = Enable 9-bit or Multidrop mode.
Logic 0 = IrDA version 1.0, 3/16 pulse ratio, data rate up to 115.2 Kbps (default).
Logic 1 = IrDA version 1.1, 1/4 pulse ratio, data rate up to 1.152 Mbps. For more IR mode information, please
See ”Section 2.16, Infrared Mode” on page 20.
Modem Status Register (MSR) - Write Only
Scratch Pad Register (SPR) - Read/Write
See ”Section 2.15, Normal Multidrop Mode” on page 19.
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