Datasheet

40.14.18 HSMCI Write Protection Mode Register
Name: HSMCI_WPMR
Offset: 0xE4
Reset: 0x0
Property: Read/Write
Bit 31 30 29 28 27 26 25 24
WPKEY[23:16]
Access
Reset 0 0 0 0 0 0 0 0
Bit 23 22 21 20 19 18 17 16
WPKEY[15:8]
Access
Reset 0 0 0 0 0 0 0 0
Bit 15 14 13 12 11 10 9 8
WPKEY[7:0]
Access
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
WPEN
Access
Reset 0
Bits 31:8 – WPKEY[23:0] W
rite Protect Key
Value Name Description
0x4D4349
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 Protect 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 0x4D4349 (“MCI” in ASCII).
1
Enables the Write Protection if WPKEY corresponds to 0x4D4349 (“MCI” in ASCII).
SAM E70/S70/V70/V71 Family
High-Speed Multimedia Card Interface (HSMCI)
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 970