CS43130 Datasheet, PDF (90/137 Pages) Cirrus Logic – 130-dB, 32-Bit High-Performance DAC with Integrated Headphone Driver

CS43130
5.11 Headphone Load Measurement
Example 5-23. Sequence for Disabling the Impedance Measurement Subsystem (Cont.)
STEP
TASK
5 Turn off impedance measurement
subsystem
REGISTER/BIT FIELDS
HP Load 1. 0xE0000
HPLOAD_EN
Reserved
HPLOAD_CHN_SEL
Reserved
HPLOAD_AC_START
HPLOAD_DC_START
VALUE
0x00
0
00
0
00
0
0
6 Wait for interrupt. Check if HPLOAD_OFF_INT = 1 in Interrupt Status 4 register (0xF0003).
7 Disable HP Load Interrupts
Interrupt Mask 4. 0xF0013
0xFF
8 Reset HP load measurement frequency HP Load Measurement 1. 0xE0003
to 0 Hz
HPLOAD_MEAS_FREQ_LSB
0x00
0x00
HP Load Measurement 2. 0xE0004
0x00
HPLOAD_MEAS_FREQ_MSB
0x00
DESCRIPTION
Disable impedance measurement subsystem
LSB of load measurement frequency
MSB of load measurement frequency
90
DS1073F1