STI5512 查看數據表（PDF） - STMicroelectronics

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STI5512

SET TOP BOX BACKEND DECODER WITH INTEGRATED HOST PROCESSOR

STMicroelectronics 

CONFIDENTIAL STi5512

Diagnostic controller

The Diagnostic Controller Unit (DCU) is accessed via the JTAG test access port. It is the main access for

communication with a host for development, including loading code and debugging. It provides:

• Bootstrapping and debugging during development

• Hardware breakpoint and watchpoint facilities

• Real-time tracing

• External LSA triggering support

OS-Link serial port

The OS-Link serial port can provide communication with a host for development, including loading code and

debugging. This is provided for compatibility with previous silicon and software products.

System services module

The STi5512 system services module includes:

• A Phase Locked Loop (PLL) which accepts 27 MHz input and generates all the internal high frequency clocks

needed for the CPU and the OS-Link

• A second PLL which is used to generate all the MPEG decoder and display clocks

• A Test Access Port which is JTAG compatible

• Reset controller

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