CS4207 Datasheet, PDF (39/144 Pages) Cirrus Logic – Low-power, 4-in / 6-out HD Audio CODEC with Headphone Amp

CS4207
Clock stops or if Link Resets are generated before the Unsolicited Response for the state change has
been returned to the host.
• Reporting of ClkStopOk when stopping of the clock would be permitted. The CLKSTOP is a static ca-
pability with ClkStopOk a dynamic reporting. The setting the capability CLKSTOP to one (1) and not al-
lowing the clock to stop by not reporting ClkStopOk is not permissible. Unless there is a condition or
dependency that the host software cannot be made aware of, that would prohibit stopping the clock, the
ClkStopOk shall be reported as set (1). It is expected that host software will poll the ClkStopOk before
stopping the clock if the CLKSTOP is reported at one (1).
6.3.7
GPIO Capabilities
Get Parameter Command Format:
Bits [31:28]
CAd = X
Bits [27:20]
Node ID = 01h
Response Format:
Bits
31
Type
Read Only
30
29:24
23:16
Read Only
Read Only
Read Only
15:8
Read Only
7:0
Read Only
Bits [19:8]
Verb ID = F00h
Bits [7:0]
Parameter ID = 11h
Default
0b
0b
0h
0h
0h
4h
Description
GPIOWake; Does not support GPIO wake func-
tion.
GPIOUnsol; Does not support Unsolicited
Response capability.
Reserved
NumGPIs; is an integer representing the number
of GPI pins supported by the function.
NumGPOs; is an integer representing the num-
ber of GPOs supported by the function.
NumGPIOs; is an integer representing the num-
ber of GPIOs supported by the function.
DS880F1
39