BCM7115 PRODUCT Brief ® BCM7115 SINGLE-CHIP SET-TOP BOX WITH PVR B C M 7 1 1 5 variable symbol rate receiver • 1024/256/64-QAM supporting ITU-T J.83 Annex A/B/C out-of-band receiver and a QPSK to 256-QAM • QPSK upstream burst modulator • DAVIC 1.2/1.5 MAC • Dolby AC-3/MUSICAM audio decoding • 2D/3D graphics engine • NTSC/PAL video decoder • NTSC/PAL video encoder • BTSC decoder • External bus interface (EBI) serving as local bus 200-MHz RISC MIPS32 • High-performance, processor with 8-KB I and 8-KB D caches • USB host with dual port (OHCI) devices include IEEE 1394 interface, POD • Peripheral interface, V.90 Softmodem support, LED, UARTs and ® S U M M A R Y F E AT U R E S B E N E F I T S front-end and back-end results in the most • Integrated cost-effective, single-chip, set-top box solution with • ® • • • TM • • • • O F • personal video recording (PVR) PVR engine supports time shifting on a program being viewed and recording of another program simultaneously (watch and record) Support for DAVIC and DCII enable deployment in major cable markets worldwide Industry-leading compact form factor design is enabled by high integration High-performance RISC processor can support today’s demanding set-top box operating systems and applications External QAM demodulator support for PVR watch and record IDE controller Personal video recording (PVR) support with IDE controller, 3DES, and dedicated DMA engines Single unified memory architecture Software device drivers supporting multiple operating systems and middlewares BCM7040 MPEG-2 encoder interface BCM7115 Single-Chip Set-top Box with PVR System Block Diagram