CS43131 datasheet(106/156 Pages) CIRRUS

106 / 156 page

106

DS1155F1

CS43131

6 Register Quick Reference

The registers for each CS43131 module are located at specific base addresses within the 24-bit register address space.

The organization of this register space is summarized in Table 6-1.

Notes: Default values are shown below the bit field names. The default values in all reserved bits must be preserved.

6.1 Global Registers

6.2 PLL Registers

Table 6-1. Register Base Addresses

Base Address

Module

Reference

0x01 0000

Global Registers

Section 6.1

0x03 0000

PLL Registers

Section 6.2

0x04 0000

ASP and XSP Registers

Section 6.3

0x06 0000

DSD Registers

Section 6.4

0x08 0000

Headphone and PCM Registers

Section 6.5

0x0F 0000

Interrupt Status and Mask Registers

Section 6.6

Address

Function

654321

0x01 0000 Device ID A and B

(Read Only)

DEVIDA

DEVIDB

p. 113

100001

0x01 0001 Device ID C and D

(Read Only)

DEVIDC

DEVIDD

p. 113

001001

0x01 0002 Device ID E (Read

Only)

DEVIDE

—

p. 113

001000

0x01 0004 Revision ID (Read

Only)

AREVID

MTLREVID

p. 113

xxx

xxxxx

0x01 0005 Subrevision ID (Read

Only)

SUBREVID

p. 113

0x01 0006 System Clocking

Control

—

MCLK_INT

MCLK_SRC_SEL

p. 114

000011

0x01 0007–

0x01 000A

Reserved

—

000000

0x01 000B Serial Port Sample

Rate

—ASP_SPRATE

p. 114

000000

0x01 000C Serial Port Sample Bit

Size

—

XSP_SPSIZE

ASP_SPSIZE

p. 114

000010

0x01 000D Pad Interface

Configuration

—

XSP_3ST

ASP_3ST

p. 114

000001

0x01 000E–

0x01 FFFF

Reserved

—

000000

0x02 0000 Power Down Control

PDN_XSP

PDN_ASP

PDN_DSDIF

PDN_HP

PDN_XTAL

PDN_PLL

PDN_CLKOUT

—

p. 115

111111

0x02 0001–

0x02 0051

Reserved

—

000000

0x02 0052 Crystal Setting

—

XTAL_IBIAS

p. 115

0x02 0053–

0x03 0000

Reserved

—

000000

Address

Function

654321

0x03 0001 PLL Setting 1

—

PLL_START

p. 116

000000

0x03 0002 PLL Setting 2

PLL_DIV_FRAC_0

p. 116

000000

0x03 0003 PLL Setting 3

PLL_DIV_FRAC_1

p. 116

000000

0x03 0004 PLL Setting 4

PLL_DIV_FRAC_2

p. 116

000000

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