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Intel PXA255 Speaker System User Manual

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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

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