BCM7115 Datasheet, PDF (1/2 Pages) Broadcom Corporation. – SINGLE CHIP SET TOP BOX WITH PVR

BCM7115
PRODUCT
Brief
®
BCM7115 SINGLE-CHIP SET-TOP BOX WITH PVR
BCM7115 FEATURES
• 1024/256/64-QAM variable symbol rate receiver
supporting ITU-T J.83 Annex A/B/C
• QPSK out-of-band receiver and a QPSK to 256-QAM
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}
• ^{High-performance, 200-MHz RISC MIPS32TM}
processor with 8-KB I and 8-KB D caches
• ^{USB host with dual port (OHCI)}
• ^{Peripheral devices include IEEE 1394 interface, POD}
interface, V.90 Softmodem support, LED, UARTs and
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}
SUMMARY OF BENEFITS
• Integrated front-end and back-end results in the most
cost-effective, single-chip, set-top box solution with
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
BCM7115 Single-Chip Set-top Box with PVR System Block Diagram