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Intel PXA255 User Manual

Page 55

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Intel® PXA255 Processor Developer’s Manual

2-25

System Architecture

I2S

0x4040_0000

0x4040_0000

SACR0

Global Control Register

0x4040_0004

SACR1

Serial Audio I

2

S/MSB-Justified Control Register

0x4040_0008

Reserved

0x4040_000C

SASR0

Serial Audio I

2

S/MSB-Justified Interface and FIFO Status Register

0x4040_0010

Reserved

0x4040_0014

SAIMR

Serial Audio Interrupt Mask Register

0x4040_0018

SAICR

Serial Audio Interrupt Clear Register

0x4040_001C

through

0x4040_005C

Reserved

0x4040_0060

SADIV

Audio Clock Divider Register.

0x4040_0064

through

0x4040_007C

Reserved

0x4040_0080

SADR

Serial Audio Data Register (TX and RX FIFO access Register).

AC97

0x4050_0000

0x4050_0000

POCR

PCM Out Control Register

0x4050_0004

PICR

PCM In Control Register

0x4050_0008

MCCR

Mic In Control Register

0x4050_000C

GCR

Global Control Register

0x4050_0010

POSR

PCM Out Status Register

0x4050_0014

PISR

PCM In Status Register

0x4050_0018

MCSR

Mic In Status Register

0x4050_001C

GSR

Global Status Register

0x4050_0020

CAR

CODEC Access Register

0x4050_0024

through

0x4050_003C

Reserved

0x4050_0040

PCDR

PCM FIFO Data Register

0x4050_0044

through

0x4050_005C

Reserved

0x4050_0060

MCDR

Mic-in FIFO Data Register

0x4050_0064

through

0x4050_00FC

Reserved

0x4050_0100

MOCR

Modem Out Control Register

0x4050_0104

Reserved

0x4050_0108

MICR

Modem In Control Register

0x4050_010C

Reserved

0x4050_0110

MOSR

Modem Out Status Register

Table 2-8. System Architecture Register Address Summary (Sheet 5 of 12)

Unit

Address

Register Symbol

Register Description