wm8903 Wolfson Microelectronics plc, wm8903 Datasheet - Page 143

• Manufacturer Part Number: wm8903
• Description: Ultra Low Power Codec For Portable Audio Applications
• Manufacturer: Wolfson Microelectronics plc

Pre-Production
R98 (62h)
Charge
Pump 0
Register 62h Charge Pump 0
R104 (68h)
Class W 0
Register 68h Class W 0
R108 (6Ch)
Write
Sequencer 0
Register 6Ch Write Sequencer 0
R109 (6Dh)
Write
Sequencer 1
Register 6Dh Write Sequencer 1
w
REGISTER
REGISTER
REGISTER
REGISTER
ADDRESS
ADDRESS
ADDRESS
ADDRESS
14:12 WSEQ_DATA_WIDTH[2:0]
11:8
4:0
BIT
BIT
7:0
BIT
8
BIT
0
0
WSEQ_WRITE_INDEX[4:0]
WSEQ_DATA_START[3:0]
CP_DYN_PWR
WSEQ_ADDR[7:0]
WSMD_CLK_ENA
CP_ENA
LABEL
LABEL
LABEL
LABEL
DEFAULT
DEFAULT
0
0
0000_0000 Control Register Address to be written to in
DEFAULT
DEFAULT
0_0000
0000
000
Enable charge-pump digits
0 = disable
1 = enable
Enable dynamic charge pump power control
0 = charge pump controlled by volume register
settings
1 = charge pump controlled by real-time audio level
0
Width of the data block written in this
sequence step.
000 = 1 bit
001 = 2 bits
010 = 3 bits
011 = 4 bits
100 = 5 bits
101 = 6 bits
110 = 7 bits
111 = 8 bits
Bit position of the LSB of the data block
written in this sequence step.
0000 = Bit 0
…
1111 = Bit 15
this sequence step.
Write Sequencer / Mic Detect Clock Enable.
0 = Disabled
1 = Enabled
Previously called WSEQ_ENA.
Sequence Write Index. This is the memory
location to which any updates to R109 and
R110 will be copied.
0 to 31 = RAM addresses
DESCRIPTION
DESCRIPTION
DESCRIPTION
DESCRIPTION
PP, Rev 3.1, August 2009
WM8903
143