CS5535-UDCF AMD (ADVANCED MICRO DEVICES), CS5535-UDCF Datasheet - Page 254

• Manufacturer Part Number: CS5535-UDCF
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of CS5535-UDCF

• Operating Temperature (min): 0C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Compliant

6.3.2.4
ACC I/O Offset
Type
Reset Value
Since this register could potentially be accessed by both an audio driver and a modem driver running at the same time, it is
expected that all writes occur as atomic read-modify-write accesses.
254
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10
15:0
Bit
21
20
19
18
17
16
Codec Control Register (ACC_CODEC_CNTL)
CMD_ADD
Name
SDATAIN2_EN
BM5_SEL
BM4_SEL
RSVD
STS_NEW
RSVD
STS_DATA
0Ch
R/W
00000000h
31506B
ACC_CODEC_STATUS Bit Descriptions (Continued)
COMM
_SEL
Description
Enable Second Serial Data Input (AC_S_IN2).
0: Disable.
1: Enable.
For the second serial input to function, this bit must be set. This is functionally ANDed
with the AC_S_IN2 port of the ACC. Often, it may be necessary to configure a corre-
sponding I/O pin as an input on the chip containing the ACC.
Audio Bus Master 5 AC97 Slot Select. Selects the serial input slot for Audio Bus Mas-
ter 5 to receive data.
0: Slot 6.
1: Slot 11.
Audio Bus Master 4 AC97 Slot Select. Selects slot for Audio Bus Master 4 to transmit
data.
0: Slot 6.
1: Slot 11.
Reserved. Reads return 0
Codec Status New (Read to Clear). Indicates if the status data in bits [15:0] is new:
0: Not new.
1: New.
This bit is set by hardware after receiving valid codec status data in slot 2 of the input
stream. Upon issuing a read to the codec registers, software should wait for this flag to
indicate that the corresponding data has been returned.
Reserved. Reads return 0.
Codec Status Data (Read Only). This is the codec status data that is received from
the codec in slot 2, bits [19:4] of the serial input stream. This is used for reading the
contents of registers inside the AC97 codec.
ACC_CODEC_CNTL Register Map
AMD Geode™ CS5535 Companion Device Data Book
AC97 Audio Codec Controller Register Descriptions
9
CMD_DATA
8
7
6
5
4
3
2
1
0