WM8912
Production Data
WSEQ
INDEX
REGISTER
ADDRESS
WIDTH
START
DATA
DELAY
EOS
DESCRIPTION
(delay = 0.5625ms)
16 (10h)
R67 (43h)
4 bits
Bit 0
0Fh
Ch
0b
DCS_ENA_CHAN_0 = 1
DCS_ENA_CHAN_1 = 1
DCS_ENA_CHAN_2 = 1
DCS_ENA_CHAN_3 = 1
(delay = 0.5625ms)
17 (11h)
R68 (44h)
8 bits
Bit 0
F0h
0h
0b
DCS_TRIG_STARTUP_0 = 1
DCS_TRIG_STARTUP_1 = 1
DCS_TRIG_STARTUP_2 = 1
DCS_TRIG_STARTUP_3 = 1
(delay = 256.5ms)
18 (12h)
19 (13h)
R255 (FFh)
R90 (5Ah)
1 bit
Bit 0
Bit 0
00h
77h
0h
0h
0b
0b
Dummy Write for expansion
(delay = 0.5625ms)
8 bits
HPL_ENA_OUTP = 1
HPR_ENA_OUTP = 1
(delay = 0.5625ms)
20 (14h)
21 (15h)
22 (16h)
R94 (5Eh)
R90 (5Ah)
R94 (5Eh)
8 bits
8 bits
8 bits
Bit 0
Bit 0
Bit 0
77h
FFh
FFh
0h
0h
0h
0b
0b
1b
LINEOUTL_ENA_OUTP = 1
LINEOUTR_ENA_OUTP = 1
(delay = 0.5625ms)
HPL_RMV_SHORT = 1
HPR_RMV_SHORT = 1
(delay = 0.5625ms)
LINEOUTL_RMV_SHORT = 1
LINEOUTR_RMV_SHORT = 1
End of Sequence
23 (17h)
24 (18h)
R255 (FFh)
R255 (FFh)
1 bit
1 bit
Bit 0
Bit 0
00h
00h
0h
0h
0b
0b
Spare
Spare
Table 59 Start-up Sequence
SHUTDOWN SEQUENCE
The Shutdown sequence is initiated by writing 0119h to Register R111 (6Fh). This single operation
starts the Control Write Sequencer at Index Address 25 (19h) and executes the sequence defined in
Table 60.
For typical clocking configurations with MCLK=12.288MHz, this sequence takes approximately
350ms to run.
WSEQ
INDEX
REGISTER
ADDRESS
WIDTH
START
DATA
DELAY
EOS
DESCRIPTION
25 (19h)
26 (1Ah)
27 (1Bh)
R94 (5Eh)
R90 (5Ah)
R90 (5Ah)
8 bits
Bit 0
77h
0h
0b
LINEOUTL_RMV_SHORT = 0
LINEOUTR_RMV_SHORT = 0
(delay = 0.5625ms)
8 bits
8 bits
Bit 0
Bit 0
77h
00h
0h
0h
0b
0b
HPL_RMV_SHORT = 0
HPR_RMV_SHORT = 0
(delay = 0.5625ms)
HPL_ENA_OUTP = 0
HPL_ENA_DLY = 0
HPL_ENA = 0
HPR_ENA_OUTP = 0
HPR_ENA_DLY = 0
HPR_ENA = 0
(delay = 0.5625ms)
PD, Rev 4.0, September 2010
88
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
