CS4297A
CS4297A
4.20 Vendor ID1 Register (Index 7Ch)
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
F7
F6
F5
F4
F3
F2
F1
F0
S7
S6
S5
S4
S3
S2
S1
S0
F[7:0]
S[7:0]
Default
First Character of Vendor ID. With a value of F[7:0] = 43h, these bits define the ASCII ‘C’
character.
Second Character of Vendor ID. With a value of S[7:0] = 52h, these bits define the ASCII ‘R’
character.
4352h. This register contains read-only data.
4.21 Vendor ID2 Register (Index 7Eh)
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
T7
T6
T5
T4
T3
T2
T1
T0
0
DID2 DID1 DID0
0
REV2 REV1 REV0
T[7:0]
Third Character of Vendor ID. With a value of T[7:0] = 59h, these bits define the ASCII ‘Y’
character.
DID[2:0]
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.
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.
DID[2:0]
000
Part Name
CS4297
001
CS4297A
CS4294/CS4298
CS4299
010
011
100
CS4201
101
CS4205
Table 8. Device ID with Corresponding Part Number
REV[2:0]
001
Revision
A
010
B
011
C
100
D, E, F, G, H
101
K
L
110
Table 9. Revision Values
DS318PP6
31
31
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