CS43130 Datasheet, PDF (114/137 Pages) Cirrus Logic – 130-dB, 32-Bit High-Performance DAC with Integrated Headphone Driver

CS43130
7.5 Headphone and PCM Registers
7.5.15 HP AC Load Status 0
R/O
7
6
5
4
3
2
1
RL_AC_STAT_0
Default
0
0
0
0
0
0
0
Bits
Name
Description
7:0 RL_AC_ Byte 0 of HP AC load measured in .
STAT_0 _{RL_AC_STAT_1[7:0] and RL_AC_STAT_0[7:3] represent integer portion of impedance value.}
RL_AC_STAT_0[2:0] represent fractional portion, with fractional weighting as follows:
[2]: 0.5
[1]: 0.25
[0]: 0.125
Default: 0000000
Address 0xE0010
0
0
7.5.16 HP AC Load Status 1
Address 0xE0011
R/O
7
6
5
4
3
2
1
0
RL_AC_STAT_1
Default
0
0
0
0
0
0
0
0
Bits
Name
Description
7:0 RL_AC_ Byte 1 of HP AC load measured in .Refer to RL_AC_STAT_0 for details of measurement interpretation.
STAT_1 _{Default: 0000000}
7.5.17 HP Load Status
R/O
7
HPLOAD_DC_
ONCE
6
HPLOAD_
BUSY
Default
0
0
5
4
—
0
0
Address 0xE001A
3
2
1
0
HPLOAD_AC_ HPLOAD_AC_ HPLOAD_DC_ HPLOAD_DC_
DONE
BUSY
DONE
BUSY
0
0
0
0
Bits
Name
Description
7 HPLOAD_ Status of HP load DC measurement been performed at least once.
DC_ONCE _{0 Condition is not present}
1 Condition is present
6 HPLOAD_ Status of HP load measurement block state machine.
BUSY
0 State machine is not busy
1 State machine is busy
5:4
—
Reserved
3 HPLOAD_AC_ HP load AC measurement is done status.
DONE
0 Condition is not present
1 Condition is present
2 HPLOAD_AC_ HP AC load measurement is “in process” status.
BUSY
0 Condition is not present
1 Condition is present
1 HPLOAD_ HP load DC measurement is done status.
DC_DONE _{0 Condition is not present}
1 Condition is present
0 HPLOAD_ HP DC load measurement is “in process” status.
DC_BUSY _{0 Condition is not present}
1 Condition is present
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DS1073F1