Microchip Technology /ATSAME51J19A /NVMCTRL /CTRLB

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Interpret as CTRLB

15 1211 87 43 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (EP)CMD0CMDEX

CMD=EP

Description

Control B

Fields

CMD

Command

0 (EP): Erase Page - Only supported in the USER and AUX pages.

1 (EB): Erase Block - Erases the block addressed by the ADDR register, not supported in the user page

3 (WP): Write Page - Writes the contents of the page buffer to the page addressed by the ADDR register, not supported in the user page

4 (WQW): Write Quad Word - Writes a 128-bit word at the location addressed by the ADDR register.

16 (SWRST): Software Reset - Power-Cycle the NVM memory and replay the device automatic calibration procedure and resets the module configuration registers

17 (LR): Lock Region - Locks the region containing the address location in the ADDR register.

18 (UR): Unlock Region - Unlocks the region containing the address location in the ADDR register.

19 (SPRM): Sets the power reduction mode.

20 (CPRM): Clears the power reduction mode.

21 (PBC): Page Buffer Clear - Clears the page buffer.

22 (SSB): Set Security Bit

23 (BKSWRST): Bank swap and system reset, if SMEE is used also reallocate SMEE data into the opposite BANK

24 (CELCK): Chip Erase Lock - DSU.CE command is not available

25 (CEULCK): Chip Erase Unlock - DSU.CE command is available

26 (SBPDIS): Sets STATUS.BPDIS, Boot loader protection is discarded until CBPDIS is issued or next start-up sequence

27 (CBPDIS): Clears STATUS.BPDIS, Boot loader protection is not discarded

48 (ASEES0): Activate SmartEEPROM Sector 0, deactivate Sector 1

49 (ASEES1): Activate SmartEEPROM Sector 1, deactivate Sector 0

50 (SEERALOC): Starts SmartEEPROM sector reallocation algorithm

51 (SEEFLUSH): Flush SMEE data when in buffered mode

52 (LSEE): Lock access to SmartEEPROM data from any mean

53 (USEE): Unlock access to SmartEEPROM data

54 (LSEER): Lock access to the SmartEEPROM Register Address Space (above 64KB)

55 (USEER): Unlock access to the SmartEEPROM Register Address Space (above 64KB)

CMDEX

Command Execution

165 (KEY): Execution Key

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