XR17V354IB176-F Exar Corporation, XR17V354IB176-F Datasheet - Page 40

• Manufacturer Part Number: XR17V354IB176-F
• Description: IC UART PCIE 256B DUAL 176FPBGA
• Manufacturer: Exar Corporation

Specifications of XR17V354IB176-F

• Number Of Channels: 4, QUART
• Package / Case: 176-LFBGA
• Features: *
• Fifo's: 256 Byte
• Protocol: RS485
• Voltage - Supply: 3.3V
• With Auto Flow Control: Yes
• With Irda Encoder/decoder: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: Surface Mount
• Data Rate: 25 Mbps
• Supply Current: 120 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• No. Of Channels: 4
• Uart Features: Tx/Rx FIFO Counters
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: BGA
• No. Of Pins: 176
• 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

XR17V354
HIGH PERFORMANCE QUAD PCI-EXPRESS UART
Address lines A0 to A3 select the 16 registers in each channel. The first 8 registers are 16550 compatible with
EXAR enhanced feature registers located on the upper 8 addresses.
3.5
UART CHANNEL CONFIGURATION REGISTERS
A3 A2 A1 A0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
A
DDRESS
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0 0
0 0
0 1
1 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
T
ABLE
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
FCTR - Feature Control Register
EFR - Enhanced Function Register
TXCNT - Transmit FIFO Level Counter
TXTRG - Transmit FIFO Trigger Level
RXCNT - Receive FIFO Level Counter
RXTRG - Receive FIFO Trigger Level
Xoff-1 - Xoff Character 1
Xchar
Xoff-2 - Xoff Character 2
Xon-1 - Xon Character 1
Xon-2 - Xon Character 2
13: UART CHANNEL CONFIGURATION REGISTERS
- Auto RS485 Delay
R
EGISTER
E
16550 C
NHANCED
40
OMPATIBLE
R
EGISTER
R
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read/Write
Read-only
Write-only
Read-only
Write-only
Read-only
Read-only
Write-only
Read-only
Write-only
Read-only
Write-only
Write-only
Read-only
Write-only
Write-only
Write-only
EAD
/W
RITE
Xon,Xoff Rcvd.
EFR bit-4 = 1
C
LCR[7] = 0
LCR[7] = 1
LCR[7] = 1
LCR[7] = 1
LCR[7] = 0
LCR[7] = 0
OMMENTS
Flags
REV. 1.0.1