3 pcm-out control register (pocr), Pocr bit definitions -23 – Intel PXA255 User Manual

Page 473

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Intel® PXA255 Processor Developer’s Manual

13-23

AC’97 Controller Unit

13.8.3.3

PCM-Out Control Register (POCR)

This is a read/write register. Ignore reads from reserved bits. Write zeros to reserved bits.

6

POINT

PCM Out Interrupt (POINT)

0 = None of the PCM out channel interrupts occurred.
1 = One of the PCM out channel interrupts occurred.

When the specific interrupt is cleared, this bit will be cleared (interruptible).

5

PIINT

PCM In Interrupt (PIINT)

0 = None of the PCM in channel interrupts occurred.
1 = One of the PCM in channel interrupts occurred.

When the specific interrupt is cleared, this bit will be cleared (interruptible).

4:3

reserved

2

MOINT

Modem-Out Interrupt (MOINT)

0 = None of the Modem out channel interrupts occurred.
1 = One of the Modem out channel interrupts occurred.

When the specific interrupt is cleared, this bit will be cleared (interruptible).

1

MIINT

Modem-In Interrupt (MIINT)

0 = None of the modem-in channel interrupts occurred.
1 = One of the modem-in channel interrupts occurred.

When the specific interrupt is cleared, this bit will be cleared (interruptible).

0

GSCI

CODEC GPI Status Change Interrupt (GSCI)

0 = Bit 0 of slot 12 is clear.
1 = Bit 0 of slot 12 is set. This indicates that one of the GPI’s changed state and that the

new values are available in slot 12.

The bit is cleared by software writing a “1” to this bit location (interruptible).

Table 13-8. GSR Bit Definitions (Sheet 2 of 2)

Physical Address

4050_001C

GSR Register

AC’97 Controller Unit

Bit

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9

8

7

6

5

4

3

2

1

0

reserved

CDO

N

E

SDO

N

E

reser

ved

RD

CS

B

IT3SL

T12

B

IT2SL

T12

B

IT1SL

T12

SEC

RES

PR

IR

ES

SC

R

PC

R

MI

N

T

PO

IN

T

P

IIN

T

reser

ved

MOI

N

T

M

IIN

T

GS

CI

Reset

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Bits

Name

Description

Table 13-9. POCR Bit Definitions (Sheet 1 of 2)

Physical Address

4050_0000

POCR Register

AC’97 Controller Unit

Bit

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9

8

7

6

5

4

3

2

1

0

reserved

FEIE

reser

ved

Reset

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Bits

Name

Description

31:4

reserved

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