XR16L2750IM-F Exar Corporation, XR16L2750IM-F Datasheet - Page 20

• Manufacturer Part Number: XR16L2750IM-F
• Description: IC UART FIFO 64B DUAL 48TQFP
• Manufacturer: Exar Corporation
• Type: IrDA or RS- 485r

Specifications of XR16L2750IM-F

• Number Of Channels: 2, DUART
• Package / Case: 48-TQFP
• Features: *
• Fifo's: 64 Byte
• Protocol: RS232, RS485
• Voltage - Supply: 2.25 V ~ 5.5 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: 6.25 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.25 V
• Supply Current: 5 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.5 V or 3.3 V or 5 V
• No. Of Channels: 2
• Uart Features: Tx/Rx FIFO Counters
• Supply Voltage Range: 2.25V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: TQFP
• 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
• Other names: 1016-1280

XR16L2750
2.25V TO 5.5V DUART WITH 64-BYTE FIFO
Each of the UART channel in the 2750 has its own set of configuration registers selected by address lines A0,
A1 and A2 with CSA# or CSB# selecting the channel. The complete register set is shown on
Table
3.0 UART INTERNAL REGISTERS
8.
A
A2 A1 A0
DDRESSES
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
1
1
1
1
0
0 0
0 1
0 0
0 1
0 1
1 0
1 1
0 0
0 1
1 0
1 1
1 1
1 1
0 0
0 1
1 0
0 0
0 1
1 0
1 1
0 0
T
ABLE
RHR - Receive Holding Register
THR - Transmit Holding Register
DLL - Div Latch Low Byte
DLM - Div Latch High Byte
DREV - Device Revision Code
DVID - Device Identification Code
IER - Interrupt Enable Register
ISR - Interrupt Status Register
FCR - FIFO Control Register
LCR - Line Control Register
MCR - Modem Control Register
LSR - Line Status Register
Reserved
MSR - Modem Status Register
Reserved
SPR - Scratch Pad Register
FLVL - RX/TX FIFO Level Counter Register
EMSR - Enhanced Mode Select Register
TRG - RX/TX FIFO Trigger Level Register
FC - RX/TX FIFO Level Counter Register
FCTR - Feature 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
7: UART CHANNEL A AND B UART INTERNAL REGISTERS
16C550 C
R
EGISTER
E
NHANCED
OMPATIBLE
20
R
EGISTERS
R
EGISTERS
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-only
Write-only
Read-only
Read-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Write-only
Read-only
EAD
/W
RITE
LCR ≠ 0xBF, FCTR[6] = 0
LCR ≠ 0xBF, FCTR[6] = 1
LCR[7] = 1, LCR ≠ 0xBF
LCR[7] = 1, LCR ≠ 0xBF
DLL, DLM = 0x00,
LCR ≠ 0xBF
LCR ≠ 0xBF
LCR = 0xBF
C
LCR[7] = 0
LCR[7] = 0
xr
OMMENTS
Table 7
REV. 1.2.1
and