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Forum Post: RE: Data Side Channel

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Also, why do my device ID's appear different once a connection is made between the slave and master?

See the information below:

DI_GET_DEVICE_INFO on the master returned the following:

Decoded data

Index

Name

Value

Description

[0:3]

DEVICE_ID[31:0]

536985723 (0x2001C07B)

Unique 32b device ID.
Values 0x00000000 or 0xFFFFFFFF can never occur

[4:7]

MANF_ID[31:0]

1

Unique 32b manufacturer ID.
Value 0xFFFFFFFF means not set / do not care. The manufacturer and product/family ID can be used as filtering criteria when scanning for WASP networks or when a master determined whether a slave can join its network.

[8:11]

PROD_ID[31:0]

1

Product / family ID as determined by manufacturer
Value 0xFFFFFFFF means not set / do not care

NWM_GET_STATUS_S performed on the master returned the following:

Index

Name

Value

Description

[0:3]

DEVICE_ID[31:0]

471262208 (0x1C16E400)

Network ID of current network (device ID of master)

[4:7]

MANF_ID[31:0]

18874525 (0x0120009D)

Manufacturer ID of protocol master

[8:11]

PROD_ID [31:0]

1778384896 (0x6A000000)

Product ID of protocol master

[12][7:5]

-

0

Reserved, ignore value

[12][4]

WPM_DSC_EN

0

Indicates that master supports data side channel communication

[12][3]

WPM_MFCT_FILT

0

Indicates that master only accepts slaves with matching manufacturer ID into network

[12][2]

WPM_PAIR_SIGNAL

0

Indicates that master is signaling that it is attempting to pair with a new slave

[12][1]

WPM_ALLOWS_JOIN

0

Indicates that master can accept more slaves into network

[12][0]

-

1

Reserved, ignore value

[13:14]

ACH_SUPPORT[15:0]

0

Bitmask indicating which audio channels the protocol master supports. The bit indexes correspond to the logical audio channel indexes defined for NWM_ACH_SET_USAGE.

[15][7]

ACH_ACTIVE[0]

0

Flag that indicates whether audio channel at spatial location 0 is currently in use in audio network

Notice the device ID values return different values.  Why is this?

Thanks


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