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| CableCARDTM INTERFACE CONTROLLER CXD1969 Customer Requirements Specification DESCRIPTION The CXD1969 is an `Plug & Play' and OpenCableTM CableCARDTM interface controller IC designed for use with OpenCableTM compliant CableCARDTM modules. It performs the communication interface between a host microcontroller and the CableCARDTM. The IC communicates to the Host either by a 68k-type or I2C connection. Communication between the CXD1969 and the CableCARDTM is highly efficient due to the inclusion of a fully integrated hardware Physical layer. MPEG2 Transport Stream interfaces are fully programmable ensuring compatibility to commonly used Front End demodulators and MPEG2 decoders. A SCTE 28 compliant software stack is also available for this device. 100 pin Plastic LQFP FEATURES PC Card Interface * Fully integrated CableCARDTM interface. * Support for generic PC Cards. * Supports 3V3 modules (VPP either 3V3 or 5V) * Integrated Physical layer with 1Kbyte buffers. Host Interface * 68k-type host bus interface * 27MHz or 33MHz operating frequency. * I2C host bus interface. * 100kHz or 400kHz operation. * Maskable/programmable interrupt capability. * 3V3 logic levels. OOB Interface * Supports SCTE 28 Bidirectional OOB I/F. Transport Stream Interfaces * Accepts MPEG2 compliant TS. * SCTE28 compliant parallel TS interfaces to/from POD Card. * TS interface from tuner (up to 72Mbits/s). * Serial TS interface to downstream device (up to 72Mbits/s). * Four serial input and output modes. Miscellaneous * Integrated PLL for serial TS. * 5V compatible I/Os. * LQFP 100-pin package. APPLICATIONS * iDTV * Set Top Box * Personal Video Recorder (PVR) Document No. DC_D1969_CM_2108 Version: 3.0 -1- Released: Jul 2004 CXD1969 2 Key differences between CXD2099AR and CXD1969 * * * * * * * * * * * * * Clock frequency can be 27MHz or 33MHz No change to 68k host interface Polarity/function of HIRQ is now programmable Removed ability to extend data and address lines by the use of external buffers TS Input I/F is now serial only, (parallel TS input removed) No change to TS Output I/F Hot-swap state machine removed Support for dual-slot removed VCCSW and OVERLOAD functionality removed VCCSEL changed to VPPSEL to support 3V3 or 5V PODs Bidirectional OOB I/F added Technology process change, some changes to DC spec Pinout optimized for POD Document No. DC_D1969_CM_2108 Version: 3.0 -5- Released: Jul 2004 |
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