WM8850
Pre-Production
PORT-G (NID = 12h) AND PORT-F (NID = 13h)
Table 25 gives a summary of the Port-G and Port-F nodes:
NODE SUMMARY INFORMATION
12h / 13h
NID
Widget Type
Pin Complex
Supported Get Verbs
Supported Set Verbs
Unsolicited Responses
Vendor-Specific Verbs
F00h, F02h, F07h, F08h, F09h, F1Ch, F8Eh
707h, 708h, 709h, 71Ch, 71Dh, 71Eh, 71Fh, 78Eh
Presence Detect
F8Eh, 78Eh : Unsolicited Response Priority Control Verb
Table 25 Port-G and Port-F Nodes Summary Information
Port-G and Port-F each contain a VMID-referenced differential line driver which requires AC-coupling
if driving outputs directly. It is possible to use the output in a single-ended configuration if required;
note that this will result in a drop in signal level of 6dB.
If a single-ended output is required, VOUT2LP (VOUT3LP) and VOUT2RP (VOUT3RP) should be
used to connect to the load, and VOUT2LN (VOUT3LN) and VOUT2RN (VOUT3RN) should be left
unconnected. There is no requirement to change register settings or provide any additional external
components to compensate for the unconnected output pins.
PP, April 2011, Rev 3.2
56
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
