Datasheet

43.7.15 TWIHS Write Protection Mode Register
Name: TWIHS_WPMR
Offset: 0xE4
Reset: 0x00000000
Property: Read/Write
Bit 31 30 29 28 27 26 25 24
WPKEY[23:16]
Access
W W W W W W W W
Reset 0 0 0 0 0 0 0 0
Bit 23 22 21 20 19 18 17 16
WPKEY[15:8]
Access
W W W W W W W W
Reset 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8
WPKEY[7:0]
Access
W W W W W W W W
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
WPEN
Access
R/W
Reset 0
Bits 31:8 – WPKEY[23:0] W
rite Protection Key
Value Name Description
0x545749
PASSWD Writing any other value in this field aborts the write operation of the WPEN bit. Always reads
as 0.
Bit 0 – WPEN W
rite Protection Enable
See Register Write Protection for the list of registers that can be write-protected.
Value Description
0
Disables the write protection if WPKEY corresponds to 0x545749 (“TWI” in ASCII).
1
Enables the write protection if WPKEY corresponds to 0x545749 (“TWI” in ASCII).
SAM E70/S70/V70/V71 Family
T
wo-wire Interface (TWIHS)
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 1110