CS4297A-KQ Cirrus Logic, CS4297A-KQ Datasheet - Page 31

• Manufacturer Part Number: CS4297A-KQ
• Description: CrystalClear SoundFusion Audio Codec 97
• Manufacturer: Cirrus Logic

4.20
F[7:0]
S[7:0]
Default
4.21
T[7:0]
DID[2:0]
REV[2:0]
Default
The two Vendor ID registers provide a means to determine the manufacturer of the AC ’97 audio codec. The first
three bytes of the Vendor ID registers contain the ASCII code for the first three letters of Crystal (CRY). The final
byte of the Vendor ID registers is divided into a Device ID field and a Revision field. Table 8 lists the currently defined
Device ID’s. Table 9 lists the current revisions of the CS4297A.
D15
D15
F7
T7
Vendor ID1 Register (Index 7Ch)
Vendor ID2 Register (Index 7Eh)
D14
D14
F6
T6
D13
D13
F5
T5
character.
character.
4352h. This register contains read-only data.
character.
First Character of Vendor ID. With a value of F[7:0] = 43h, these bits define the ASCII ‘C’
Second Character of Vendor ID. With a value of S[7:0] = 52h, these bits define the ASCII ‘R’
Third Character of Vendor ID. With a value of T[7:0] = 59h, these bits define the ASCII ‘Y’
Device ID. With a value of DID[2:0] = 001, these bits specify the audio codec is a CS4297A.
Revision. With a value of REV[2:0] = 001, these bits specify the audio codec revision is ‘A’.
591xh. This register contains read-only data.
D12
D12
F4
T4
D11
D11
F3
T3
Table 8. Device ID with Corresponding Part Number
D10
D10
F2
T2
REV[2:0]
DID[2:0]
000
001
010
100
101
001
010
100
101
011
011
110
D9
D9
F1
T1
Table 9. Revision Values
D8
D8
F0
T0
CS4294/CS4298
D, E, F, G, H
D7
S7
D7
Part Name
0
CS4297A
Revision
CS4297
CS4299
CS4201
CS4205
C
A
B
K
L
DID2
D6
S6
D6
DID1
D5
D5
S5
DID0
D4
S4
D4
D3
S3
D3
0
REV2 REV1 REV0
D2
D2
S2
CS4297A
D1
S1
D1
D0
S0
D0
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