NVMCON1

Nonvolatile Memory Control 1 Register
Name:
NVMCON1
Address:
0xF80
Reset:
Access:
Bit76543210
SECERSECWRWRSECRDRD
AccessR/S/HCR/S/HCR/S/HCR/S/HCR/S/HC
Reset00000

Bit 6 – SECER

NVM Sector Erase Enable Control bit
ValueNameDescription
1 NVMADR points to PFM Immediately following the sector erase unlock sequence, perform a sector erase operation. Stays set until operation is complete. Cannot be cleared by software.
0 NVMADR points to PFM NVM sector erase operation is complete and inactive.

Bit 5 – SECWR

NVM Sector Write Enable Control bit
ValueNameDescription
1 NVMADR points to PFM or CONFIG Immediately following the sector write unlock sequence, initiates the PFM sector write operation. Stays set until the write is complete. Cannot be cleared by software.
0 NVMADR points to PFM or CONFIG NVM sector write operation is complete and inactive.

Bit 4 – WR

NVM Write Control bit
ValueNameDescription
1 NVMADR points to DFM Immediately following the DFM write unlock sequence, initiates a DFM byte erase/write sequence using data in the NVMDATL register. Stays set until the operation is complete. Cannot be cleared by software.
1 NVMADR points to PFM Immediately following the PFM write unlock sequence, initiates an NVM word write sequence using data in the NVMDATH:L register pair. Stays set until the operation is complete. Cannot be cleared by software.
0 NVMADR points to PFM or DFM NVM byte/word write operation is complete and inactive.

Bit 1 – SECRD

PFM Sector Read Enable Control bit
ValueNameDescription
1 NVMADR points to PFM or CONFIG Immediately following the sector read unlock sequence, initiates a read of one full sector from PFM into sector RAM. Stays set until the read is complete. Cannot be cleared by software.
0 NVMADR points to PFM or CONFIG PFM sector read operation is complete and inactive.

Bit 0 – RD

NVM Read Enable Control bit
ValueNameDescription
1 NVMADR points to DFM Initiates a read of one byte from DFM into the NVMDATL register. Stays set until the read is complete. Cannot be cleared by software.
1 NVMADR points to PFM Initiates a read of one word from PFM into the NVMDATH:L registers. Stays set until the read is complete. Cannot be cleared by software.
0 NVMADR points to PFM or DFM NVM read operation is complete and inactive.