STA335W
Register description
5.13.1
Table 49. Status register bits
Bit R/W RST
Name
7
R
-
PLLUL
6
R
-
FAULT
5
R
-
UVFAULT
4
R
-
3
R
-
2
R
-
1
R
-
OVFAULT
OCFAULT
OCWARN
TFAULT
0
R
-
TWARN
Description
0: PLL locked
1: PLL not locked
0: fault detected on power bridge
1: normal operation
0: VCCxX internally detected
< undervoltage threshold
0: VCCxX internally detected
> overvoltage threshold
0: overcurrent fault detected
0: overcurrent warning
0: thermal fault, junction temperature over limit
detection
0: thermal warning, junction temperature is close to
the fault condition
Extended Soft Volume configuration registers (addr 0x37 - 0x38)
D7
D6
D5
D4
D3
D2
D1
D0
SVUPE
SVUP[4]
SVUP[3]
SVUP[2]
SVUP[1]
SVUP[0]
0
0
0
0
0
0
0
0
D7
D6
D5
D4
D3
D2
D1
D0
SVDWE
SVDW4]
SVDW[3]
SVDW[2]
SVDW[1]
SVDW[0]
0
0
0
0
0
0
0
0
Soft volume update has a fixed rate by default. Using register 0x37 and 0x38 it is possible to
override the default behavior allowing different volume change rates.
It is also possible to independently define the fade-in (volume is increased) and fade-out
(volume is decreased) rates according to the desired behavior.
SVUPE
Mode
0
When volume is increased, use the default rate
1
When volume is increased, use the rates defined by SVUP[4:0] .
When SVUPE = 1 the fade-in rate is defined by the SVUP[4:0] bits according to the
following formula:
Fade-in rate = 48 / (N + 1) dB/ms
where N is the SVUP[4:0] value.
SVDWE
0
1
Mode
When volume is decreased, use the default rate
When volume is decreased, use the rates defined by SVDW[4:0] .
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