Features: · Full duplex 2B + D S/T-interface transceiver compatible with ITU-T I.430 Recommendation- Four wire operation- Received clock recovery- Layer 1 activation/deactivation procedures- D channel access control- Supports multiframe synchronization· Supports LAPD protocol- Flag generation/reco...
W6690: Features: · Full duplex 2B + D S/T-interface transceiver compatible with ITU-T I.430 Recommendation- Four wire operation- Received clock recovery- Layer 1 activation/deactivation procedures- D chann...
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The Winbond's single chip ISDN S/T interface controller (W6690) is an all-in-one device suitable for ISDN Internet access. Three HDLC controllers are incorporated in the chip, one for D channel and the other two for B channels. These HDLC controllers facilitate efficient access to signalling and data services. The PCM codec interface provides voice service or other services. For PC ISA bus add-on card application, the built-in plug and play controller is used for automatic card identification and resource assignment. The plug and play controller can be disabled for traditional ISA card applications. Furthermore, an Intel or Motorola 8-bit micro-controller compatible interface is provided.