CS4294SLASHCS4298 datasheet(53/81 Pages) CIRRUS

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CS4205

DS489PP4

5.38

Vendor ID1 Register (Index 7Ch)

F[7:0]

First Character of Vendor ID. With a value of F[7:0] = 43h, these bits define the ASCII ‘C’ char-

acter.

S[7:0]

Second Character of Vendor ID. With a value of S[7:0] = 52h, these bits define the ASCII ‘R’ char-

acter.

Default

4352h. This register contains read-only data.

5.39

Vendor ID2 Register (Index 7Eh)

T[7:0]

Third Character of Vendor ID. With a value of T[7:0] = 59h, these bits define the ASCII ‘Y’ char-

acter.

DID[2:0]

Device ID. With a value of DID[2:0] = 101, these bits specify the audio codec is a CS4205.

REV[2:0]

Revision. With a value of REV[2:0] = 001, these bits specify the audio codec revision is ‘A’.

Default

595xh. This register contains read-only data.

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 22 lists the currently defined Device ID’s.

D15

D14

D13

D12

D11

D10

D15

D14

D13

D12

D11

D10

DID2

DID1

DID0

REV2 REV1 REV0

DID2 - DID0

Part Name

000

CS4297

001

CS4297A

010

CS4294/CS4298

011

CS4299

100

CS4201

101

CS4205

110

CS4291

111

CS4202

Table 22. Device ID with Corresponding Part Number

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