XR17V258 66MHZ PCI BUS OCTAL UART WITH POWER MANAGEMENT SUPPORT AUGUST 2010 REV. 1.0.2 GENERAL DESCRIPTION Factory Automation and Process Control Instrumentation 1 The XR17V258 (V258) is a single chip 8-channel Multi-port RS-232/RS-422/RS-485 Cards 66MHz PCI (Peripheral Component Interconnect) UART (Universal Asynchronous Receiver and Point-of-Sale Systems Transmitter) solution, optimized for higher FEATURES performance and lower power. The V258 device with its fifth generation register set is designed to meet the High performance 32-bit 66MHz PCI UART high bandwidth and power management PCI 3.0 compliance requirements for multi-serial communication ports for PCI power management rev. 1.1 compliance system administration and management. The 32-bit 66MHz PCI interface is compliant with PCI 3.0 and EEPROM interface for PCI configuration PCI power management revision 1.1 specifications. 3.3V supply with 5V tolerant non-PCI (serial) inputs The device provides an upgrade path for Exars Data read/write burst operation 33MHz 5V and Universal PCI UART family of products in a 144-pin LQFP package. Global interrupt register for all eight UART channels The V258 consists of eight independent UART Up to 8 Mbps serial data rate channels, each with set of configuration and Eight multi-purpose inputs/outputs enhanced registers, 64 bytes of Transmit (TX) and A 16-bit general purpose timer/counter Receive (RX) FIFOs, and a fractional Baud Rate Generator (BRG). A global interrupt source register Sleep mode with wake-up Indicator provides a complete interrupt status indication for all Eight independent UART channels controlled with 8-channels to speed up interrupt parsing. The V258 16C550 compatible register set device operates at 33/66MHz and features fully 64-byte TX and RX FIFOs with level counters programmable TX and RX FIFO level triggers, and programmable trigger levels automatic hardware and software flow control, and Fractional baud rate generator automatic RS-485 half duplex direction control output for software and hardware design simplification. Automatic RTS/CTS or DTR/DSR hardware flow control with programmable hysteresis NOTE 1: Covered by U.S. Patents 5,649,122 and 5,949,787 Automatic Xon/Xoff software flow control APPLICATIONS RS-485 half duplex direction control output with selectable turn-around delay Remote Access Servers Infrared (IrDA 1.0) data encoder/decoder Storage Network Management Programmable data rate with prescaler FIGURE 1. BLOCK DIAGRAM OF THE XR17V258 UUU AAARTRTRT Ch Ch Chaaannnnnneeelll 000 TXTX 77::00 ADADAD 333111 :::000 646464---bbb ytytyteee T T TXXX F F FIIIFFFOOO UAUAUA RTRTRT C/C/C/BEBEBE 333:::000 IRIRIR RXRX 77::00 ReReRegggsss TXTXTX & & & R R RXXX EEENDENDENDECCC PAPARR BRBRBR GGG 666444---bbb yyyttteee R R RXXX FIFIFIFOFOFO FRFRAAMMEE RTRTSS 77::00 TRTRDDYY PCPC II L L ooccaall UAUARTRT C C hhaannnneell 11 IRIR DD YY DTDTR R 77::00 BuBuss STSTOOP P UAUARTRT C C hhaannnneell 22 InIntt eerrffaa ccee DDEVEVSELSEL CTCTSS 77::00 UAUARTRT C C hhaannnneell 33 IIDDSELSEL GGGlllobaobaoballl 3333/6/666MM HH zz C CLLKK DSDSRR 77::00 UAUARTRT C C hhaannnneell 44 CCC ooonnnfffigigiguuurrraaatttioioionnn RSRSTT ReReRegggiiisssttteeerrrsss PEPERRRR UAUARTRT C C hhaannnneell 55 DCDCD D 77::00 SERSERRR UAUARTRT C C hhaannnneell 66 ININ TTAA CConfonfiigurguraattiioonn RRII 7:7:00 SSppaceace PME PME UAUARTRT C C hhaannnneell 77 ReReggiisstteerrss ENENIIRR MPMPMPIIIOOO 777:::000 MuMuMullltttiii---pupupurrrpppooossseee 16-16-16-bbbiiittt EECEECKK IIInnnputputputsss///OOOuuutttputputputsss TTTiiimmmeeerrr///CCCounounounttteeerrr EEEEDDII XTXTAALL11//CCLLKK EEEEEEPPPRRROOOMMM CCC rrrystystystaaalll Osc/ Osc/ Osc/BBB uuuffffffererer XTXTAALL22 EEDEEDOO InInInttteeerrrfffaaaccceee EECEECSS TMTMRRCCKK Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com XR17V258 66MHZ PCI BUS OCTAL UART WITH POWER MANAGEMENT SUPPORT REV. 1.0.2 FIGURE 2. PIN OUT OF THE DEVICE XTAL2 109 72 CTS5 XTAL1 110 71 RX5 ENIR PME 111 70 69 VCC 112 TMRCK EEDO 68 113 MPIO4 EEDI 114 67 MPIO5 EECS 115 66 MPIO6 116 EECK 65 MPIO7 117 VCC TX1 64 DTR1 118 63 GND RTS1 119 62 TX6 DTR6 RI1 120 61 CD1 121 60 RTS6 RI6 DSR1 122 59 CTS1 123 58 CD6 RX1 124 57 DSR6 TX0 125 56 CTS6 RX6 DTR0 126 55 XR17V258 RTS0 127 54 TX7 RI0 53 DTR7 128 CD0 129 52 RTS7 DSR0 130 51 RI7 CTS0 131 50 CD7 RX0 132 49 DSR7 48 CTS7 133 INTA 134 47 RX7 RST CLK 135 46 GND 136 45 GND VCC VCC 137 44 AD0 138 43 AD1 AD31 139 AD30 42 AD2 41 AD3 AD29 140 AD28 141 40 AD4 AD27 142 39 AD5 AD26 38 AD6 143 144 37 AD25 AD7 ORDERING INFORMATION PART NUMBER PACKAGE OPERATING TEMPERATURE RANGE DEVICE STATUS XR17V258IV 144-Lead LQFP -40C to +85C Active 2 MPIO0 AD24 108 1 CBE3 2 107 MPIO1 106 IDSEL 3 TX2 105 DTR2 VCC 4 104 GND 5 RTS2 103 RI2 AD23 6 CD2 AD22 7 102 AD21 8 101 DSR2 100 CTS2 AD20 9 99 RX2 AD19 10 98 11 TX3 AD18 12 97 DTR3 AD17 13 96 RTS3 AD16 CBE2 14 95 RI3 94 CD3 FRAME 15 DSR3 IRDY 16 93 TRDY 92 CTS3 17 91 RX3 DEVSEL 18 90 VCC 19 VCC GND 89 20 GND 88 STOP 21 TX4 87 PERR DTR4 22 SERR 23 86 RTS4 24 85 RI4 PAR 25 84 CD4 CBE1 83 AD15 DSR4 26 82 AD14 27 CTS4 RX4 81 AD13 28 TX5 29 80 AD12 DTR5 79 AD11 30 78 RTS5 31 AD10 RI5 77 AD9 32 CD5 76 AD8 33 DSR5 75 VCC 34 MPIO2 74 GND 35 73 MPIO3 CBE0 36