XR17V354 HIGH PERFORMANCE QUAD PCI-EXPRESS UART JULY 2018 REV. 1.0.5 FEATURES GENERAL DESCRIPTION Single 3.3V power supply 1 The XR17V354 is a single chip 4-channel PCI Express (PCIe) UART (Universal Asynchronous Internal buck regulator for 1.2V core Receiver and Transmitter), optimized for higher PCIe 2.0 Gen 1 compliant performance and lower power. The XR17V354 serves as a single lane PCIe bridge to 4 independent x1 Link, dual simplex, 2.5 Gbps in each direction enhanced 16550 compatible UARTs. The XR17V354 Expansion bus interface is compliant to PCIe 2.0 Gen 1 (2.5 GT/s). EEPROM interface for configuration In addition to the UART channels, the XR17V354 has 16 multi-purpose I/Os (MPIOs), a 16-bit general Data read/write 32-bit operation purpose counter/timer and a global interrupt status Global interrupt status register for all four UARTs register to optimize interrupt servicing. Up to 31.25 Mbps serial data rate Each UART of the XR17V354 has many enhanced features such as the 256-bytes TX and RX FIFOs, 16 multi-purpose inputs/outputs (MPIOs) programmable Fractional Baud Rate Generator, 16-bit general purpose timer/counter Automatic Hardware or Software Flow Control, Auto RS-485 Half-Duplex Direction Control, programmable Sleep mode with wake-up Indicator TX and RX FIFO Trigger Levels, TX and RX FIFO Four independent UART channels controlled with Level Counters, infrared mode, and data rates up to 16550 compatible register Set 31.25 Mbps. The XR17V354 is available in a 176-pin FPBGA package (13 x 13 mm). 256-byte TX and RX FIFOs Programmable TX and RX Trigger Levels NOTE 1: Covered by U.S. Patents 5,649,122, 6,754,839, TX/RX FIFO Level Counters 6,865,626 and 6,947,999 Fractional baud rate generator APPLICATIONS Automatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresis Next generation Point-of-Sale Systems Automatic Xon/Xoff software flow control Remote Access Servers RS-485 half duplex direction control output with programmable turn-around delay Storage Network Management Multi-drop with Auto Address Detection Factory Automation and Process Control Infrared (IrDA 1.1) data encoder/decoder Multi-port RS-232/RS-422/RS-485 Cards Software compatible to XR17C15x, XR17D15x, XR17V25x PCI UARTs FIGURE 1. BLOCK DIAGRAM OF THE XR17V354 Configuration TX+ UUUAAARRRT T T CCChahahannennennelll 000 T X 3:0 Space T X 7:0 B uck R egulator TX- Registers 256-6464-- bbbytyytte e e TTTXXX FFFIIIFFFOOO R X 3:0 RX+ UUUARTARTART RX 7:0 RX- IRIRIR ReReRegggsss TTXTXX & && R RRXXX EEENDENDENDECCC R T S 3:0 CLK+ CLK- 256-byte RX FIFO BRBRBRGGG 664-4- byte RX FIFO 125 M Hz C lock DTR 3:0 PCIe CLKREQ P C I Lo cal C T S 3 :0 Interface PERST UART Channel 1 Bus UART Channel 2 Interface D S R 3 :0 EN485 UUAARRT T CChahannennell 23 ENIR DCD 3:0 GGG lllobaobaoballl EECK CCConfonfonfiiigurgurguraaatttiiiononon Configuration EEDI RRR egegegiiistststererersss Space UART Channel 3 RI 3:0 EEEEEEPROPROPRO MMM Registers EEDO UART Channel 5 IIInnnttterererfffaceaceace EECS UART Channel 6 Multi-purpose MPIO 15:0 D 7:0 Inputs/O utputs UART Channel 7 SEL - purpose CLK 161616---bbbiiittt Expansion Inputs/O utputs TiTiTimmm eeerrr///CCCountountounteeerrr In terface IN T MODE Crystal O sc/B uffer PRES TMTM RRCCKK 1XR17V354 HIGH PERFORMANCE QUAD PCI-EXPRESS UART REV. 1.0.5 FIGURE 2. 176-FPBGA PINOUT A1A1A1 CCCooorrrnnneeerrr 1111 2222 3333 4444 5555 6 6 6 6 7777 8 8 8 8 9999 11110000 1 1 1 11111 11112222 11113 3 3 3 14 14 14 14 15151515 A A A A B B B B C C C C D D D D E E E E F F F F GGGG HHHH JJJJ KKKK LLLL MMMM NNNN PPPP RRRR TTTrrranananspspsparararenenenttt TTToooppp VVViiieeewww 111 2 2 2 3 3 3 4 4 4 5 5 5 666 777 8 8 8 9 9 9 111000 111111 111222 111333 1 1 1444 111555 NCNCNC NCNCNC NCNCNC GNGNGNDDD NCNCNC NCNCNC DSDSDSR2R2R2 GNGNGNDDD RTRTRTSSS222 TMTMTMRCKRCKRCK TETETESSST2T2T2 GNGNGNDDD LXLXLX LXLXLX NCNCNC A A A NCNCNC NCNCNC NCNCNC NCNCNC NCNCNC NCNCNC CDCDCD222 DTDTDTR2R2R2 RXRXRX222 ENENENIIIRRR TETETESSST1T1T1 GNGNGNDDD VVVCC3CC3CC3333 VVVCC3CC3CC3333 VVVCC3CC3CC3333 B B B MPMPMPIIIOOO000 NCNCNC NCNCNC NCNCNC NCNCNC NCNCNC RIRIRI222 CTCTCTSSS222 TXTXTX222 ENENEN485485485 FBFBFB GNGNGNDDD VVVCC3CC3CC3333 ENENENABLABLABLEEE D0D0D0 C C C MPMPMPIIIOOO222 MPMPMPIOIOIO111 NCNCNC GNGNGNDDD VVVCC3CC3CC3333 GNGNGNDDD VVVCC1CC1CC1222 GNGNGNDDD VVVCC3CC3CC3333 GNGNGNDDD VVVCC1CC1CC1222 GNGNGNDDD PWPWPWRRRGGGDDD INININTTT D2D2D2 D D D MPMPMPIIIOOO555 MPMPMPIOIOIO444 MPMPMPIOIOIO333 VVVCC1CC1CC1222 VVVCC3CC3CC3333 D1D1D1 D3D3D3 D4D4D4 E E E GNGNGNDDD TTTESTESTEST000 MPMPMPIOIOIO666 GNGNGNDDD GNGNGNDDD D5D5D5 D6D6D6 D7D7D7 F F F RXRXRX+++ RXRXRX--- GNGNGNDDD CLCLCLKKK+++ VVVCC1CC1CC1222 SELSELSEL CLCLCLKKK MOMOMODEDEDE GGG GNGNGNDDD GNGNGNDDD REREREXXXTTT CLCLCLKKK--- GNGNGNDDD RIRIRI111 PRPRPREEESSS GNGNGNDDD HHH TXTXTX+++ TXTXTX--- GNGNGNDDD GNGNGNDDD VVVCC3CC3CC3333 DTDTDTR1R1R1 DSDSDSR1R1R1 CDCDCD111 JJJ GNGNGNDDD VVVCC1CC1CC1222 VVVCC3CC3CC3333 VVVCC1CC1CC1222 GNGNGNDDD RTRTRTSSS111 RXRXRX111 CTCTCTSSS111 KKK CCCLLLKRKRKREQ EQ EQ PERPERPERSTSTST MPMPMPIOIOIO777 GNGNGNDDD VVVCC1CC1CC1222 CDCDCD000 RIRIRI000 TXTXTX111 LLL GNGNGNDDD MPMPMPIOIOIO888 MPMPMPIOIOIO111111 MPMPMPIOIOIO111444 TMTMTMSSS GNGNGNDDD VVVCC3CC3CC3333 GNGNGNDDD VVVCC1CC1CC1222 GNGNGNDDD NCNCNC EEDEEDEEDOOO RXRXRX000 DSDSDSR0R0R0 GNGNGNDDD MMM MPMPMPIIIOOO999 MPMPMPIOIOIO111222 MPMPMPIOIOIO111555 TRTRTRSSSTTT TXTXTX333 CTCTCTSSS333 CDCDCD333 RIRIRI333 NCNCNC NCNCNC NCNCNC NCNCNC TXTXTX000 CTCTCTSSS000 DTDTDTR0R0R0 NNN MPMPMPIIIOOO111000 MPMPMPIOIOIO111333 TCTCTCKKK TDTDTDOOO RTRTRTSSS333 DTDTDTR3R3R3 NCNCNC NCNCNC NCNCNC NCNCNC NCNCNC NCNCNC EEEEEECCCKKK EEDEEDEEDIII RTRTRTSSS000 PPP NCNCNC RRRESETESETESET TDTDTDIII GNGNGNDDD RXRXRX333 DSDSDSR3R3R3 NCNCNC GNGNGNDDD NCNCNC NCNCNC NCNCNC GNGNGNDDD NCNCNC EEEEEECCCSSS NCNCNC RRR (1) ORDERING INFORMATION PART NUMBER OPERATING TEMPERATURE RANGE LEAD-FREE PACKAGE PACKAGING METHOD (2) XR17V354IB176-F -40C to +85C 176-FPBGA Tray Yes XR17V354/SP339-0A-EB XR17V354 4-Channel Evaluation Board XR17V354/SP339-E4-EB XR17V354 8-Channel Evaluation Board (Master / Slave) XR17V354/SP339-E8-EB XR17V354 12-Channel Evaluation Board (Master / Slave) NOTES: 1. Refer to www.exar.com/XR17V354 for most up-to-date Ordering Information. 2. Visit www.exar.com for additional information on Environmental Rating. 2