CS47L35 datasheet(128/300 Pages) CIRRUS

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DS1085F3

CS47L35

4.10 SLIMbus Interface Control

• Active channels can be reconfigured using the CHANGE_CONTENT, NEXT_DEFINE_CONTENT, or NEXT_

DEFINE_CHANNEL messages. Note that these changes can be effected without interrupting the data channel; the

NEXT_DEFINE_CHANNEL, for example, may be used to change a segment distribution, in order to reallocate the

SLIMbus bandwidth.

• An active channel can be paused using the NEXT_DEACTIVATE_CHANNEL message and reinstated using the

NEXT_ACTIVATE_CHANNEL message.

• Data channels can be disconnected using the DISCONNECT_PORT or NEXT_REMOVE_CHANNEL messages.

These messages provide equivalent functionality, but use different parameters (PN or CN respectively) to identify

the affected signal path.

4.10 SLIMbus Interface Control

The CS47L35 features a MIPI-compliant SLIMbus interface, providing six channels of audio input and six channels of

audio output. Mixed audio sample rates are supported on the SLIMbus interface. The SLIMbus interface also supports

read/write access to the CS47L35 control registers.

The SLIMbus interface on CS47L35 comprises a generic device and an interface device. A maximum of 12 ports can be

configured, providing up to six input (RX) channels and up to six output (TX) channels.

The audio paths associated with the SLIMbus interface are described in Section 4.3.

The SLIMbus interface supports read/write access to the CS47L35 control registers, as described in Section 4.10.6.

The SLIMbus clocking rate and channel allocations are controlled by the manager device. The message channel and data

channel bandwidth may be dynamically adjusted according to the application requirements. Note that the manager device

functions are not implemented on the CS47L35, and these bandwidth allocation requirements are outside the scope of

this data sheet.

4.10.1 SLIMbus Device Parameters

The SLIMbus interface on the CS47L35 comprises two devices. The enumeration address of each device within the

SLIMbus interface is derived from the parameters noted in Table 4-50.

4.10.2 SLIMbus Message Support

The SLIMbus interface on the CS47L35 supports bus messages as noted in Table 4-51.

Additional notes regarding SLIMbus message support are noted below, and also in Table 4-52.

Table 4-50. SLIMbus Device Parameters

Description

Manufacturer ID Product Code

Device ID

Instance Value Enumeration Address

Generic

0x01FA

0x6360

0x00

01FA_6360_0000

Interface

0x01FA

0x6360

0x7F

0x00

01FA_6360_7F00

Table 4-51. SLIMbus Message Support

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