Car Stereo System User Manual

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System Configuration and Control

1.7 System Configuration and Control

1.7.1 Overview

The DSP includes system-level registers for controlling, configuring, and reading status of the device.

These registers are accessible by the CPU and support the following features:

• Device Identification

• Device Configuration

– Pin multiplexing control

– Output drive strength configuration

– Internal pull-up and pull-down enable/disable

– On-chip LDO control

• DMA Controller Configuration

• Peripheral Reset

• EMIF and USB Byte Access

1.7.2 Device Identification

The DSP includes a set of device ID registers that are intended for use in TI chip manufacturing, but can

be used by users as a 128-bit unique ID for each device. These registers are summarized in the following

table.

Table 1-35. Die ID Registers

CPU Word Acronym Register Description Section

Address

1C40h DIEIDR0 Die ID Register 0 Section 1.7.2.1

1C41h DIEIDR1 Die ID Register 1 Section 1.7.2.2

1C42h DIEIDR2 Die ID Register 2 Section 1.7.2.3

1C43h DIEIDR3 Die ID Register 3 Section 1.7.2.4

1C44h DIEIDR4 Die ID Register 4 Section 1.7.2.5

1C45h DIEIDR5 Die ID Register 5 Section 1.7.2.6

1C46h DIEIDR6 Die ID Register 6 Section 1.7.2.7

1C47h DIEIDR7 Die ID Register 7 Section 1.7.2.8

SPRUFX5A–October 2010–Revised November 2010 System Control

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