ST5481

` SUPPORTS OSI LEVEL 1 IN CONFORMANCE WITH UIT-T I.430 FOR BASIC
  ACCESS AT S AND T INTERFACES (ETSI 300012/ANSI T1.605)
` LINE INTERFACE TRANSFORMER DIRECT DRIVE
` FULL-DUPLEX TRANSMISSION AT 192KBps ON SEPARATE TRANSMIT AND RECEIVE
  TWISTED PAIRS USING ALTERNATE MARK INVERSION (AMI) LINE CODING
` 2 B CHANNELS AT 64KBps EACH PLUS 1 D CHANNEL AT 16KBps
` ALL I.430 WIRING CONFIGURATIONS SUPPORTED INCLUDING PASSIVE BUS
  FOR TE'S DISTRIBUTED POINT TO POINT AND POINT TO MULTIPOINT
` MULTIFRAME SUPPORT
` ANALOG PART: INCLUDED WITH ADAPTIVE DETECTION THRESHOLD AND EQUALIZER USB Interface
` USB 1.0 SPECIFICATION FULL COMPLIANCE,   1.1 SPECIFICATION COMPATIBILITY
  (1.1 POWER MANAGEMENT COMPLIANCE), 12 MBps FULL SPEED
` ON-CHIP USB TRANSCEIVER WIT DIGITAL PLL
` 6 ISOCHRONOUS ENDPOINTS FOR B1, B2, D CHANNELS DATA.INTERRUPT ENDPOINT FOR I430
` ISDN PROTOCOL AND DATA.CONTROL ENDPOINT FOR USB STANDARD PLUS VENDOR SPECIFIC REQUEST
  COMMUNICATION DEVICE CLASS AND VENDOR REQUESTS
` BUS OR SELF POWERED APPLICATION PIN PROGRAMMABLE)
` ONNOW POWER MANAGEMENT (D0,D2,D3) SUSPEND MODE COMPLIANCE
` PIN PROGRAMMABLE HIGH/LOW POWER USB DEVICE REGISTRATION, WAKE-UP
  CAPABILITY, USB DEVICE IDENTIFICATION