WM8961
Pre-Production
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
Writes to the EOS field in the current write sequencer memory location
(specified by last write to WSEQ_WRITE_INDEX).
0 – not end of current sequence
R88 (58h)
Write
Sequencer 2
8
WSEQ_EOS
0
1 – end of current sequence. The write sequencer will stop after this
write has been completed.
This data will be written into the Register Address field of the current
write sequencer memory location (specified by
WSEQ_WRITE_INDEX).
7:0
WSEQ_ADDR[7:0] 0000_0000
Register 58h Write Sequencer 2
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
The Data which is to be used to overwrite the current register bits.
Only bits [WSEQ_DATA_WIDTH:0] of this register are used. The
remaining bits should be set to 0.
R89 (59h)
Write
7:0
WSEQ_DATA[7:0] 0000_0000
Sequencer 3
Register 59h Write Sequencer 3
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
Quit the current sequence and return control of the device back
to the serial control interface.
R90 (5Ah)
Write
Sequencer 4
8
7
WSEQ_ABORT
WSEQ_START
0
0
Starts the write sequencer. The write sequencer will start
writing the contents of its memory from WSEQ_START_INDEX
until it reaches an end-of-sequence flag.
Note that this bit will be reset by the Write Sequencer state
machine at the end of each sequence.
Sequence Start Index. Gives the location in memory that the
Write Sequencer will start executing from.
5:0
WSEQ_START_INDEX[5:0]
00_0000
00_0000 -> 01_1111 : locations in RAM portion of memory
10_0000 -> 11_0000 : location in ROM portion of memory.
11_0001 -> 11_1111 : reserved.
Register 5Ah Write Sequencer 4
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
Sets the highest bit of the bit slice that the write sequencer will
write to. Total width = value of this register + 1. For example:
000: Highest bit is 0. Data width 1
R91 (5Bh)
Write
Sequencer 5
6:4
WSEQ_DATA_WIDTH[2:0]
000
001: Highest bit is 1. Data width 2
…
111: Highest bit is 7. Data width 8
Selects the bit in the register for WSEQ_DATA to replace. For
example, if:
3:0
WSEQ_DATA_START[3:0]
0000
WSEQ_ADDR = 2Eh
WSEQ_DATA_WIDTH = 3 WSEQ_DATA_START = 5,
the write sequencer (when the sequence is activated) will
replace bits [7:5] of register 2Eh with the data supplied in
WSEQ_DATA[2:0].
Register 5Bh Write Sequencer 5
PP, August 2009, Rev 3.1
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WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
