AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 1026

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

33.7.30
Name:
Access Type:
Offset:
Reset Value:
• WPKEY: Write Protect Key
• WPRGx: Write Protect Register Group x
• WPCMD: Write Protect Command
This command is performed only if the WPKEY value is correct.
Note:
List of register groups:
9166C–AVR-08/11
• Register group 0:
• Register group 1:
• Register group 2:
• Register group 3:
WPRG5
–
–
–
–
–
31
23
15
7
”Clock Register” on page 995
”Disable Register” on page 998
”Sync Channels Mode Register” on page 1004
”Channel Mode Register” on page 1034
”Stepper Motor Mode Register” on page 1025
Should be written at value 0x50574D (“PWM” in ASCII). Writing any other value in this field aborts the write operation of the
WPCMD field. Always reads as 0.
Writing a zero to this bit has no effect.
Writing a one to this bit will allow to set the WPCMD command to the register group x.
0: Disable the Write Protect SW of the register groups of which the WPRGx bit is set to 1.
1: Enable the Write Protect SW of the register groups of which the WPRGx bit is set to 1.
2: Enable the Write Protect HW of the register groups of which the WPRGx bit is set to 1.
3: No effect.
Only a hardware reset of the PWM controller can disable the Write Protect HW.
Write Protect Control Register
WPRG4
30
22
14
6
WPCR
Write-only
0x0E4
-
WPRG3
29
21
13
5
WPRG2
28
20
12
4
WPKEY
WPKEY
WPKEY
WPRG1
27
19
11
3
WPRG0
26
18
10
2
25
17
9
1
WPCMD
AT32UC3C
24
16
8
0
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