Pre-Production
WM8904
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
DC Offset value for LINEOUTL in DAC Write DC
Servo mode in two's complement format.
DC Servo
R74 (4Ah)
DC Servo 7
7:0
DCS_DAC_WR_ 0000_0000
VAL_2 [7:0]
In readback, the current DC offset value is returned in
two's complement format.
Two’s complement format:
LSB is 0.25mV.
Range is +/-32mV
Register 4Ah DC Servo 7
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
DC Offset value for HPOUTR in DAC Write DC Servo DC Servo
mode in two's complement format.
R75 (4Bh)
DC Servo 8
7:0
DCS_DAC_WR_ 0000_0000
VAL_1 [7:0]
In readback, the current DC offset value is returned in
two's complement format.
Two’s complement format:
LSB is 0.25mV.
Range is +/-32mV
Register 4Bh DC Servo 8
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
DC Offset value for HPOUTL in DAC Write DC Servo DC Servo
mode in two's complement format.
R76 (4Ch)
DC Servo 9
7:0
DCS_DAC_WR_ 0000_0000
VAL_0 [7:0]
In readback, the current DC offset value is returned in
two's complement format.
Two’s complement format:
LSB is 0.25mV.
Range is +/-32mV
Register 4Ch DC Servo 9
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
DC Servo Complete status
REFER TO
DC Servo
R77 (4Dh)
DC Servo
Readback 0
11:8
DCS_CAL_COM
PLETE [3:0]
0000
[3] - LINEOUTR
[2] - LINEOUTL
[1] - HPOUTR
[0] - HPOUTL
0 = DAC Write or Start-Up DC Servo mode not
completed.
1 = DAC Write or Start-Up DC Servo mode complete.
PP, Rev 3.3, September 2012
163
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
