wm9090 Wolfson Microelectronics plc, wm9090 Datasheet - Page 46

• Manufacturer Part Number: wm9090
• Description: Ultra Low Power Audio Subsystem
• Manufacturer: Wolfson Microelectronics plc

WM9090
w
R84 (54h)
DC Servo 0
R87 (57h)
DC Servo 3
R88 (58h)
DC Servo
Readback 0
REGISTER
ADDRESS
15:8
BIT
7:0
9:8
5
4
3
2
1
0
DCS_TRIG_START
UP_1
DCS_TRIG_START
UP_0
DCS_TRIG_DAC_W
R_1
DCS_TRIG_DAC_W
R_0
DCS_ENA_CHAN_1
DCS_ENA_CHAN_0
DCS_DAC_WR_VA
L1 [7:0]
DCS_DAC_WR_VA
L0 [7:0]
DCS_CAL_COMPL
ETE [1:0]
LABEL
0000 0000
0000 0000
DEFAULT
00
0
0
0
0
0
0
Writing 1 to this bit selects Start-
Up DC Servo mode for
HPOUT1L.
In readback, a value of 1
indicates that the DC Servo
Start-Up correction is in
progress.
Writing 1 to this bit selects Start-
Up DC Servo mode for
HPOUT1R.
In readback, a value of 1
indicates that the DC Servo
Start-Up correction is in
progress.
Writing 1 to this bit selects DAC
Write DC Servo mode for
HPOUT1L.
In readback, a value of 1
indicates that the DC Servo DAC
Write correction is in progress.
Writing 1 to this bit selects DAC
Write DC Servo mode for
HPOUT1R.
In readback, a value of 1
indicates that the DC Servo DAC
Write correction is in progress.
DC Servo enable for HPOUT1L
0 = Disabled
1 = Enabled
DC Servo enable for HPOUT1R
0 = Disabled
1 = Enabled
DC Offset value for HPOUT1L in
DAC Write DC Servo mode.
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
DC Offset value for HPOUT1R in
DAC Write DC Servo mode.
Two’s complement format.
LSB is 0.25mV.
Range is +/-32mV
DC Servo Complete status
00 = DAC Write or Start-Up DC
Servo mode not completed.
01 = DAC Write or Start-Up DC
Servo mode complete on
HPOUT1R only.
10 = DAC Write or Start-Up DC
Servo mode complete on
HPOUT1L only.
11 = DAC Write or Start-Up DC
Servo mode complete on
HPOUT1L and HPOUT1R.
PP, January 2010, Rev 3.0
DESCRIPTION
Pre-Production
46