XR17V354IB176-F Exar Corporation, XR17V354IB176-F Datasheet - Page 31

• 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

REV. 1.0.1
The THR and RHR register address for channel 0 to channel 3 is shown in
for each channel 0 to 3 are located sequentially at address 0x0000, 0x0200, 0x0400 and 0x0600. Transmit
data byte is loaded to the THR when writing to that address and receive data is unloaded from the RHR
register when reading that address. Both THR and RHR registers are 16C550 compatible in 8-bit format, so
each bus operation can only write or read in bytes.
2.2
Data Bit-31
PCI Bus
B7 B6 B5 B4 B3 B2 B1 B0
FIFO DATA LOADING AND UNLOADING THROUGH THE UART CHANNEL REGISTERS, THR
AND RHR IN 8-BIT FORMAT
Transmit Data Byte n+3
T
ABLE
10: T
CH3 0xC000 Read THR
CH3 0xC000 Write RHR
CH0 0x0000 Read THR
CH0 0x0000 Write RHR
CH1 0x4000 Read THR
CH1 0x4000 Write RHR
CH2 0x8000 Read THR
CH2 0x8000 Write RHR
RANSMIT AND
Channel 0 to 3 Transmit Data in 32-bit alignment through the Configuration Register Address
THR and RHR Address Locations For CH0 to CH3 (16C550 Compatible)
B7 B6 B5 B4 B3 B2 B1 B0
Transmit Data Byte n+2
R
ECEIVE
Bit-7
Bit-7
Bit-7
Bit-7
Bit-7
Bit-7
Bit-7
Bit-7
0x0100, 0x0500, 0x0900 and 0x0D00
D
ATA
Bit-6
Bit-6
Bit-6
Bit-6
Bit-6
Bit-6
Bit-6
Bit-6
R
EGISTER IN
31
Bit-5
Bit-5
Bit-5
Bit-5
Bit-5
Bit-5
Bit-5
Bit-5
HIGH PERFORMANCE QUAD PCI-EXPRESS UART
B7 B6 B5 B4 B3 B2 B1 B0
Bit-4
Bit-4
Bit-4
Bit-4
Bit-4
Bit-4
Bit-4
Bit-4
Transmit Data Byte n+1
B
YTE FORMAT
Bit-3
Bit-3
Bit-3
Bit-3
Bit-3
Bit-3
Bit-3
Bit-3
Bit-2
Bit-2
Bit-2
Bit-2
Bit-2
Bit-2
Bit-2
Bit-2
Table 10
, 16C550
Bit-1
Bit-1
Bit-1
Bit-1
Bit-1
Bit-1
Bit-1
Bit-1
B7 B6 B5 B4 B3 B2 B1 B0
below. The THR and RHR
Bit-0
Bit-0
Bit-0
Bit-0
Bit-0
Bit-0
Bit-0
Bit-0
Transmit Data Byte n+0
COMPATIBLE
XR17V354
Data Bit-0
PCI Bus