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WM8321 Datasheet(PDF) 149 Page - Wolfson Microelectronics plc

Part # WM8321
Description  Processor Power Management Subsystem
PDF  253 Pages
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Manufacturer  WOLFSON [Wolfson Microelectronics plc]
Direct Link  http://www.wolfsonmicro.com
Logo WOLFSON - Wolfson Microelectronics plc

WM8321 Datasheet(HTML) 149 Page - Wolfson Microelectronics plc

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Production Data
WM8321
w
PD, February 2012, Rev 4.0
149
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16391
(4007h)
Control
Interface
2
AUTOINC
1
Enable Auto-Increment function
0 = Disabled
1 = Enabled
Register 4007h
Control Interface
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16392
(4008h)
Security Key
15:0
SECURITY
[15:0]
0000_0000
_0000_000
0
Security Key
A value of 9716h must be written to this register to
access the user-keyed registers.
Register 4008h
Security Key
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16393
(4009h)
Software
Scratch
15:0
SW_SCRATCH
[15:0]
0000_0000
_0000_000
0
Software Scratch Register for use by the host
processor.
Note that this register’s contents are retained in the
BACKUP power state.
Register 4009h
Software Scratch
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
REFER TO
R16394
(400Ah)
OTP Control
15
OTP_PROG
0
Selects the PROGRAM device state.
0 = No action
1 = Select PROGRAM mode
Note that, after PROGRAM mode has been selected,
the chip will remain in PROGRAM mode until a Device
Reset.
Protected by security key.
13
OTP_MEM
1
Selects ICE or OTP memory for Program commands.
0 = ICE
1 = OTP
Protected by security key.
11
OTP_FINAL
0
Selects the FINALISE command, preventing further
OTP programming.
0 = No action
1 = Finalise Command
Protected by security key.
10
OTP_VERIFY
0
Selects the VERIFY command for the selected OTP
memory page(s).
0 = No action
1 = Verify Command
Protected by security key.
9
OTP_WRITE
0
Selects WRITE command for the selected OTP memory
page(s).
0 = No action
1 = Write Command
Protected by security key.



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