Datasheet

991
SAM9G25 [DATASHEET]
11032D–ATARM–10-Mar-2014
43.9.17 SSC Write Protect Mode Register
Name: SSC_WPMR
Address: 0xF00100E4
Access: Read-write
Reset: See Table 43-5
• WPEN: Write Protect Enable
0 = Disables the Write Protect if WPKEY corresponds to 0x535343 (“SSC” in ASCII).
1 = Enables the Write Protect if WPKEY corresponds to 0x535343 (“SSC” in ASCII).
Protects the registers:
• “SSC Clock Mode Register” on page 968
• “SSC Receive Clock Mode Register” on page 969
• “SSC Receive Frame Mode Register” on page 971
• “SSC Transmit Clock Mode Register” on page 973
• “SSC Transmit Frame Mode Register” on page 975
• “SSC Receive Compare 0 Register” on page 981
• “SSC Receive Compare 1 Register” on page 982
• WPKEY: Write Protect KEY
Should be written at value 0x535343 (“SSC” 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
76543210
———————WPEN