MAS9560 datasheet(18/25 Pages) MAS

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DA9560.001

20 January, 2005

Figure 1. I

2S Bus

◆ Resetting Registers

When I

2C is used:

First register 0x00 is the reset register, writing to

which will set all registers to default values. Writing

to register 0x00 sets default values to all registers,

after which following data will be written to registers

as incrementing starts. However, note that when

starting data write with the reset sequence, the byte

following the reset address is unused and the byte

after that is written to register 0x01 (DW-byte,

Reset-address-byte, unused data byte, data byte

for register 0x01). On-chip incremental counter is 4-

bits long: at address 0x0F incrementing stops.

When SPI is used:

Writing to the first register (0x00) resets all

registers. In case writing sequence is started with

reset, the byte following the reset address is

unused, similarly to I

2C-mode.

setting XRESET pin low.

CONTROL REGISTERS

MAS9560 has 11 on-chip registers, which are

controlled through I

2C- or SPI-bus (see section

Control Interfaces above). Register byte length is 8

bits for all registers, however, some bits are unused

and their value is not set and can vary (they are

non-repeatable). Reset register is write-only, all

other registers permit read and write access.

◆ Register Map

Sub-Address

0x00

Reset Register

0x01

Block Control Register

0x02

Mode Control Register

0x03

2S-Interface Control Register

0x04

Left Headphone Volume Control

0x05

Right Headphone Volume Control

0x06

Earpiece Volume Control

0x07

Loudspeaker Volume Control

0x08

Left Input Aux Gain Control

0x09

Right Input Aux Gain Control

0x0A

Ain Input Gain Control

0x0B… 0x0F

Unused

CLI

DAI

WSI

left 16-bit audio sample

right 16-bit audio sample

programmable delay bit

h -

l -

h -

l -

h -

l -

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