PCM3793A
PCM3794A
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SLAS529A–JANUARY 2007–REVISED FEBRUARY 2007
Register 77
B15
0
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
STSL
Register 77
IDX6
IDX5
IDX4
IDX3
IDX2
IDX1
IDX0
HPDS
RSV
RSV
STHC
STHR
STHL
STSR
IDX[6:0]: 100 1101b (4Dh): Register 77
HPDS: Headphone Detection Status
Default value: 0
The HPDS bit shows the status of insertion detection for the headphone. This is a read-only bit. The polarity
depends on the register 75 (HPDP) setting.
HPDS = 0
HPDS = 1
HDTI input (when HPDP = 0) (default)
Inverted HDTI input (When HPDP = 1)
STHC: Short Protection Status for HPC (Headphone COM/Monaural Output)
STHR: Short Protection Status for HPR (R-Channel Headphone)
STHL: Short Protection Status for HPL (L-Channel Headphone)
These bits can be used to read short protection status through the I2C interface.
STHC, STHR, STHL = 0
STHC, STHR, STHL = 1
Detect short circuit
Not detect short circuit
STSR: Thermal Protection Status for SPR (R-Channel Speaker)
STSL: Thermal Protection Status for SPL (L-Channel Speaker)
These bits can be used to read thermal protection status through the I2C interface.
STSR, STSL = 0
STSR, STSL = 1
Detect thermal protection
Not detect thermal protection
40
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