Introduction

STM7710

4/23

1

Introduction

The STM7710 is exactly the same as the STi7710. The STM7710 is a new generation of

high-definition set-top box decoder chip, and provides very high performance for low-cost

HD systems.

Based on the STBus architecture, this system on chip is a full back-end processing solution

for digital terrestrial, satellite and cable high-definition set-top boxes compliant with ATSC,

DVB, DIRECTV, DCII, OpenCable and ARIB BS4 specifications.

1.1

Subsystems and interfaces

Processor subsystem

●

Enhanced ST20 32-bit VL RISC CPU

–

200 MHz 8-Kbyte ICache, 8-Kbyte DCache, 4-Kbyte SRAM

–

diagnostic controller unit (DCU)

–

16 level interrupt controller

Transport stream subsystem

●

TS merger/router

–

2 serial/parallel inputs

–

1 bidirectional interface

–

merging of 3 transport streams

–

software transport stream support

–

NRSS-A module interface

●

Programmable transport interface (PTI)

–

transport stream demux: DVB, DIRECTV, ATSC, OpenCable, DCII, BS4

–

integrated DES, DVB and Multi2 encryption descramblers

Video/graphics subsystem

●

MPEG-2 MP@HL video decoder core

●

SD (ITU-R BT 601/656) digital video input

●

Displays

–

1 HD display, multiformat capable (1080I, 720P, 480P, 480I)

- analog HD output RGB or YPbPr

- HDMI encoded output

–

1 standard-definition analog display output: YPbPr, or YC and CVBS