MX97103FC

PRELIMINARY MX97103 ISDN S/T-PCI TRANSCEIVER FEATURE Single chip solution for ISDN PC card with PCI interface Supports full duplex 2B+D ISDN S/T transceiver according to ITU I.430 Integrate S-interface, D & B channel protocol controllers, and PCI controller 32-bit PCI bus interface Each B channel has 2x64 byte FIFO for each direction D channel has 2x32 byte FIFO for each direction EEPROM interface for loading vendor-specific data One programmable LED Comply to ACPI Rev 1.0 0.5u CMOS 100-pin PQFP package GENERAL DESCRIPTION MX97103 is a single chip solution for ISDN-S connection on PCI bus. It integrates S-transceiver, D and B channel protocol controllers, and PCI interface. It can be divided into the following major functional blocks : analog front end, layer 1 function, GCI interface. LAPD controller, B channel HDLC controllers, EEPROM interface and PCI interface. The important function of each major block will be described below. According to ITU 1.430 spec. the S/T interface is a 4wire interface. Among them, 2 wires are used for transmitting, and the other two are for receiving. The wiring configurations include short passive bus, extended passive bus and point-to-point connection. For short passive bus, the operation distance is from 100m to 200m, and the TEs(max 8)can be connected at random points along the full length of the cable. For extended passive bus, TEs connect to the cable at the far end from the NT. The total length would be at least 50...