wm9081 Wolfson Microelectronics plc, wm9081 Datasheet - Page 97

• Manufacturer Part Number: wm9081
• Description: Mono Dac With 2.6w Class Ab/d Speaker Driver, Dynamic Range Controller And Retune Mobile Parametric Equalizer
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
Register 26h Write Sequencer 1
Register 27h Write Sequencer 2
Register 28h MW Slave 1
w
Sequencer 1
Sequencer 2
MW Slave 1
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
R38 (26h)
R39 (27h)
R40 (28h)
Write
Write
10:4
BIT
BIT
BIT
6:0
15
9
8
0
5
4
3
1
WSEQ_START
WSEQ_START
ENT_INDEX[6:
WSEQ_CURR
WSEQ_ABOR
WSEQ_BUSY
WSEQ_ENA
_INDEX[6:0]
SPI_4WIRE
AUTO_INC
ARA_ENA
SPI_CFG
LABEL
LABEL
LABEL
0]
T
DEFAULT
DEFAULT
DEFAULT
000_0000 Sequence Start Index. This is the memory location of
000_0000 Sequence Current Index. This is the location of the
0
0
0
0
0
0
0
1
Write Sequencer Enable.
0 = Disabled
1 = Enabled
Writing a 1 to this bit aborts the current sequence and
returns control of the device back to the serial control
interface.
Writing a 1 to this bit starts the write sequencer at the
memory location indicated by the
WSEQ_START_INDEX field. The sequence continues
until it reaches an “End of sequence” flag. At the end of
the sequence, this bit will be reset by the Write
Sequencer.
the first command in the selected sequence.
most recently accessed command in the write
sequencer memory.
Sequencer Busy flag (Read Only).
0 = Sequencer idle
1 = Sequencer busy
Note: it is not possible to write to control registers via
the control interface while the Sequencer is Busy.
Controls the SDOUT pin in 4 wire mode
0 = SDOUT output is CMOS
1 = SDOUT output is open drain
Selects 3-wire or 4-wire mode
0 = 3-wire mode using bi-directional SDIN pin
1 = 4-wire mode using SDOUT
Alert Response Address protocol enable
0 = Disabled
1 = Enabled
Enable Auto-Increment function
0 = Disabled
1 = Enabled
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, Rev 3.0, April 2009
Control
Write
sequencer
Power
Managemen
t
Control
Write
sequencer
Control
Write
sequencer
Control
Write
sequencer
Control
Write
sequencer
Control
Write
sequencer
Control
Interface
(software
mode)
Control
Interface
(software
mode)
Control
Interface
(software
mode)
Control
Interface
(software
mode)
REFER TO
REFER TO
REFER TO
WM9081
97