Atmel Evaluation Kit AT91SAM9G25-EK AT91SAM9G25-EK Scheda Tecnica
Codici prodotto
AT91SAM9G25-EK
747
SAM9G25 [DATASHEET]
11032C–ATARM–25-Jan-13
37.12.12 TWI Write Protection Mode Register
Name:
TWI_WPROT_MODE
Address:
0xF80100E4 (0), 0xF80140E4 (1), 0xF80180E4 (2)
Access:
Read-write
• SECURITY_CODE: Write protection mode security code
This security code is needed to set/reset the WPROT bit value (see
for details).
Must be filled with 0x545749 (ASCII code for TWI).
• WPROT: Write protection bit
Enables/Disables write protection mode.
The write protected registers are:
31
30
29
28
27
26
25
24
SECURITY_CODE
23
22
21
20
19
18
17
16
SECURITY_CODE
15
14
13
12
11
10
9
8
SECURITY_CODE
7
6
5
4
3
2
1
0
–
–
–
–
–
–
–
WPROT