Datasheet

612
11011B–ATARM–21-Feb-12
SAM3N
612
11011B–ATARM–21-Feb-12
SAM3N
31.7.8 TC Write Protect Mode Register
Name: TC_WPMR
Addresses: 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 Block Mode Register”
”TC Channel Mode Register: Capture Mode”
”TC Channel Mode Register: Waveform Mode”
”TC Stepper Motor Mode Register”
”TC Register A”
”TC Register B”
”TC Register C”
• WPKEY: Write Protect KEY
This security code is needed to set/reset the WPROT bit value (see for details).
Must be filled with “TIM” ASCII code.
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
76543210
–––––––WPEN