Production Data
WM8580
w
PD, Rev 4.7, March 2009
51
MANUAL CLOCK SELECTION
It is possible to override all default clocking configuration restrictions by setting CLKSEL_MAN. When
CLKSEL_MAN is set, default clocking configurations such as automatic selection of PLLACLK for
DAC1 when DACSRC=00 (S/PDIF received data) are not applied. Instead, clock selection is
determined only by the relevant CLK_SEL register. Figure 32 to Figure 37 illustrate this over-ride
capability.
REGISTER
ADDRESS
BIT LABEL DEFAULT
DESCRIPTION
R8
CLKSEL
08h
6 CLKSEL_MAN
0
Clock
selection
auto-configuration
override
0 = auto-configuration enabled
1 = auto-configuration disabled,
clock configuration follows
relevant CLKSEL bits in R8 to
R11.
Table 44 Manual Clock Selection
Figure 32 Manual Clock Over-ride of DAC Clock
Figure 33 Manual Clock Over-ride of ADC Clock
Figure 34 Manual Clock Over-ride of S/PDIF Tx Clock
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