Section – Cirrus Logic CS4970x4 User Manual

Page 103

7-10

DS810UM6

CS4953x4/CS4970x4 DSP Manager API Description
CS4953x4/CS4970x4 System Designer’s Guide

Note: For any questions relating to the indices in

Table 7-4

, contact your Cirrus Logic FAE or

representative.

7.4.2.1 Using DSP Condenser to Change/Load Firmware Modules

The host processor can issue commands to change/load firmware modules based on following formats:

p=decoder mode, qq= decoder uld ID

r= mpm mode, ss= mpm uld ID

t= vpm mode, uu = vpm uld ID

vv= ppm uld ID

0x00010

DSP_CFG_MAIN_SPEAKERS

Bit 25:24 = SURROUND_RIGHT_BACK_SPEAKER_SIZE
00 - None
01 – Large
10 – Small
Bit 21:20 = SURROUND_LEFT_BACK_SPEAKER_SIZE
00 - None
01 – Large
10 – Small
Bit 17:16 = SURROUND_RIGHT_SPEAKER_SIZE
00 - None
01 – Large
10 – Small
Bit 13:12 = SURROUND_LEFT_SPEAKER_SIZE
00 - None
01 – Large
10 – Small
Bit 9:8 = CENTER_SPEAKER_SIZE
00 - None
01 – Large
10 – Small
Bit 5:4 = FRONT_SPEAKER_SIZE
00 - Not used
01 – Large
10 – Small
Bit 0 =1 Subwoofer present, 0= no subwoofer

0x0011

Functionality Still Under Develoopment

0x0012

Functionality Still Under Develoopment

0x00013

DSP_CFG_MCLK_FACTOR

Set MCLK Frequency to preferred value.
0x80 = 128 Fs
0x100 = 256 Fs
0x200 = 512 Fs Use 0x200 value for HDMI source.
Note: See

Section 7.4.2.2.

for examples how to set the

DSP_CFG_MCLK_FACTOR variable.

0x00014

Functionality Still Under Develoopment

0x00015

Functionality Still Under Develoopment

0x00016

Functionality Still Under Develoopment

0x00017

Functionality Still Under Develoopment

0x00018

Functionality Still Under Develoopment

0x00019

Reserved

Table 7-4. DSP_CFG_xxx Firmware Configuration Registers (Continued)

Index Variable

Description

This manual is related to the following products:

CS4953x4