CS4207 datasheet(49/144 Pages) CIRRUS

49 / 144 page

DS880F1

CS4207

Bits [15:0] must be programmed with the same value programmed into the Stream Descriptor, so that the

data format being transmitted on the link matches what is expected by the consumer of the data.

If the TYPE is set to Non-PCM, the controller pushes data over the link and is not concerned with format-

ting. The base rate, data type, and number of Words (MULT) to send each valid frame are specified to

control the rate at which the non-PCM data is sent.

Bits

Type

Default

Description

31:16

Read Only

0000h

Reserved

Read/Write

Stream Type (TYPE):

If TYPE is non-zero, the

other bits in the format structure have other

meanings.

0: PCM

1: Non-PCM

Read/Write

Sample Base Rate (BASE):

0 = 48 kHz

1 = 44.1 kHz

13:11

Read/Write

000b

Sample Base Rate Multiple (MULT):

000 = 48 kHz/44.1 kHz or less

001 = x2 (96 kHz, 88.2 kHz, 32 kHz)

010 = x3 (144 kHz)

011 = x4 (192 kHz, 176.4 kHz)

100-111 = Reserved

10:8

Read/Write

000b

Sample Base Rate Divisor (DIV):

000 = Divide by 1 (48 kHz, 44.1 kHz)

001 = Divide by 2 (24 kHz, 22.05 kHz)

010 = Divide by 3 (16 kHz, 32 kHz)

011 = Divide by 4 (11.025 kHz)

100 = Divide by 5 (9.6 kHz)

101 = Divide by 6 (8 kHz)

110 = Divide by 7

111 = Divide by 8 (6 kHz)

Read Only

Reserved

6:4

Read/Write

000b

Bits per Sample (BITS):

Bits in each sample:

000 = 8 bits. The data will be packed in memory

in 8-bit containers on 16-bit boundaries.

001 = 16 bits. The data will be packed in memory

in 16-bit containers on 16-bit boundaries.

010 = 20 bits. The data will be packed in memory

in 32-bit containers on 32-bit boundaries.

011 = 24 bits. The data will be packed in memory

in 32-bit containers on 32-bit boundaries.

100 = 32 bits. The data will be packed in memory

in 32-bit containers on 32-bit boundaries.

101-111 = Reserved

3:0

Read/Write

0000b

Number of Channels (CHAN):

Number of chan-

nels in each frame of the stream:

0000 = 1

0001 = 2

…

1111 = 16

CS4207 Datasheet(PDF) 49 Page - Cirrus Logic

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