WM8946 Datasheet, PDF (142/175 Pages) Wolfson Microelectronics plc – Stereo Low-Power CODEC with Video Buffer

WM8946
REGISTER BIT
LABEL
DEFAULT
DESCRIPTION
ADDRESS
R54 (36h)
15
Bandgap
BG_ENA
0
Bandgap Reference Control
0 = Disabled
1 = Enabled
4:0 BG_VSEL[4:0] 0_1010 Bandgap Voltage select
(Sets the Bandgap voltage)
00000 = 1.200V
… 26.7mV steps
01010 = 1.467V (default)
…
01111 = 1.600V
10000 to 11111 = reserved
(See Table 40 for values)
Register 36h Bandgap
Production Data
REFER TO
REGISTER BIT
ADDRESS
R64 (40h) 3:0
SE Config
Selection
LABEL
SE_CONFIG
[3:0]
Register 40h SE Config Selection
DEFAULT
DESCRIPTION
0000
DSP Configuration Mode select
0000 = Record mode
0001 = Playback mode
0010 = Reserved
0011 = Reserved
REFER TO
REGISTER BIT
LABEL
DEFAULT
DESCRIPTION
ADDRESS
R65 (41h)
5 SE1_LHPF_R_
0
SE1_LHPF_R_SIGN
SE1_LHPF_
CONFIG
SIGN
0 : sum internal result (LPF)
1 : sub internal result (HPF)
4 SE1_LHPF_L_
0
SE1_LHPF_L_SIGN
SIGN
0 : sum internal result (LPF)
1 : sub internal result (HPF)
1 SE1_LHPF_R_
0
SE1 Right channel low-pass / high-pass filter enable
ENA
0 = Disabled
1 = Enabled
0 SE1_LHPF_L_
0
SE1 Left channel low-pass / high-pass filter enable
ENA
0 = Disabled
1 = Enabled
Register 41h SE1_LHPF_CONFIG
REFER TO
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PD, July 2012, Rev 4.3
142