858
11100B–ATARM–31-Jul-12
SAM4S Series [Preliminary]
35.7.20
TC Write Protect Mode Register
Name:
TC_WPMR
Address:
0x400100E4 (0), 0x400140E4 (1)
Access:
Read-write
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x54494D (“TIM” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x54494D (“TIM” in ASCII).
Protects the registers:
”TC Channel Mode Register: Capture Mode”
”TC Channel Mode Register: Waveform Mode”
”TC Stepper Motor Mode Register”
• WPKEY: Write Protect KEY
Should be written at value 0x54494D (“TIM” in ASCII). Writing any other value in this field aborts the write operation of the
WPEN bit. Always reads as 0.
31
30
29
28
27
26
25
24
WPKEY
23
22
21
20
19
18
17
16
WPKEY
15
14
13
12
11
10
9
8
WPKEY
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
WPEN
Summary of Contents for SAM4S Series
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Page 1143: ...1143 11100B ATARM 31 Jul 12 SAM4S Series Preliminary Figure 43 4 64 lead LQFP Package Drawing ...
Page 1145: ...1145 11100B ATARM 31 Jul 12 SAM4S Series Preliminary Figure 43 5 64 lead QFN Package Drawing ...