XR20M1172IL32-F Exar Corporation, XR20M1172IL32-F Datasheet - Page 25

• Manufacturer Part Number: XR20M1172IL32-F
• Description: IC UART FIFO I2C/SPI 64B 32QFN
• Manufacturer: Exar Corporation

Specifications of XR20M1172IL32-F

• Number Of Channels: 2, DUART
• Package / Case: 32-VFQFN Exposed Pad
• Features: *
• Fifo's: 64 Byte
• Protocol: RS485
• Voltage - Supply: 1.62 V ~ 3.63 V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• With Cmos: Yes
• Mounting Type: Surface Mount
• Data Rate: 16 Mbps
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.62 V
• Supply Current: 250 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• No. Of Channels: 2
• Uart Features: Tx/Rx FIFO Counters
• Supply Voltage Range: 1.62V To 3.63V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: QFN
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

REV. 1.0.1
The complete register set is shown below in
3.0 UART INTERNAL REGISTERS
A
DDRESS
0X00
0X00
0X01
0X02
0X01
0X02
0X03
0X04
0X05
0X06
0X07
0X06
0X07
0X08
0x0C
0x0D
0x09
0x0A
0x0B
0x0E
0x0F
0x02
0x04
0x05
0x06
0x07
RHR - Receive Holding Register
THR - Transmit Holding Register
DLL - Divisor LSB
DLM - Divisor MSB
DLD - Divisor Fractional
IER - Interrupt Enable Register
ISR - Interrupt Status Register
FCR - FIFO Control Register
LCR - Line Control Register
MCR - Modem Control Register
LSR - Line Status Register
MSR - Modem Status Register
SPR - Scratch Pad Register
TCR - Transmission Control Register
TLR - Trigger Level Register
TXLVL - Transmit FIFO Level
RXLVL - Receive FIFO Level
IODir - GPIO Direction Control Register
IOState - GPIO State Register
IOIntEna - GPIO Interrupt Enable Register
Reserved
IOControl - GPIO Control Register
EFCR - Extra Features Control Register
EFR - Enhanced Function Register
Xon-1 - Xon Character 1
Xon-2 - Xon Character 2
Xoff-1 - Xoff Character 1
Xoff-2 - Xoff Character 2
T
ABLE
7: UART INTERNAL REGISTER ADDRESSES
16C550 C
R
EGISTER
Table 7
OMPATIBLE
and
25
TWO CHANNEL I2C/SPI UART WITH 64-BYTE FIFO
Table
R
EGISTERS
8.
R
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Write-only
Write-only
EAD
/W
-
RITE
LCR[7] = 1, LCR ≠ 0xBF,
LCR[7] = 1, LCR ≠ 0xBF
See
See
See
See
LCR = 0xBF
LCR ≠ 0xBF
C
LCR[7] = 0
EFR[4] = 1
LCR[7] = 0
LCR[7] = 0
XR20M1172
OMMENTS
Table 12
Table 13
Table 12
Table 13