Datasheet

SAM4S Series [DATASHEET]

11100F–ATARM–29-Jan-14

32.9.17 SSC Write Protect Mode Register

Name: SSC_WPMR

Address: 0x400040E4

Access: Read-write

Reset: See Table 32-5

• 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 627

• “SSC Receive Clock Mode Register” on page 628

• “SSC Receive Frame Mode Register” on page 630

• “SSC Transmit Clock Mode Register” on page 632

• “SSC Transmit Frame Mode Register” on page 634

• “SSC Receive Compare 0 Register” on page 640

• “SSC Receive Compare 1 Register” on page 641

• WPKEY: Write Protect KEY

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

Value Name Description

0x535343 PASSWD

Writing any other value in this field aborts the write operation of the WPEN bit.

Always reads as 0.