XR17V354IB176-F Exar Corporation, XR17V354IB176-F Datasheet - Page 62

• 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
An 8-bit value written to this register, sets the RX FIFO trigger level from 0x00 (zero) to 0xFF (255). The RX
FIFO trigger level generates an interrupt whenever the receive FIFO level rises to this preset trigger level.
These registers are used to program the Xoff1, Xoff2, Xon1 and Xon2 control characters respectively.
This register gives the status of the last sent control character (Xon or Xoff) and the last received control
character (Xon or Xoff). This register will be reset to 0x00 if, at anytime, the Software Flow Control is disabled.
XCHAR [7:4]: Reserved
XCHAR [3]: Transmit Xon Indicator
If the last transmitted control character was a Xon character or characters (Xon1, Xon2), this bit will be set to a
logic 1. This bit will clear after the read.
XCHAR [2]: Transmit Xoff Indicator
If the last transmitted control character was a Xoff character or characters (Xoff1, Xoff2), this bit will be set to a
logic 1. This bit will clear after the read.
XCHAR [1]: Xon Detect Indicator
If the last received control character was a Xon character, Xon characters (Xon1, Xon2) or an Xon-Any
character, this bit will be set to a logic 1. This bit will clear after the read.
XCHAR [0]: Xoff Detect Indicator
If the last received control character was a Xoff character or characters (Xoff1, Xoff2), this bit will be set to a
logic 1. This bit will clear after the read.
4.18
4.19
4.20
RXTRG[7:0]: Receive FIFO Trigger Level - Write Only
XOFF1, XOFF2, XON1 AND XON2 REGISTERS - Write Only
XCHAR REGISTER - Read Only
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