ATtiny1624/1626/1627

ASI_KEY_STATUS

ASI Key Status

  0x07 8 - 0x00    

ASI Key Status

Bit  7 6 5 4 3 2 1 0  
      UROWWRITE NVMPROG CHIPERASE        
Access      R/W R R        
Reset      0 0 0        

Bit 5 – UROWWRITE: User Row Write Key Status

User Row Write Key Status

This bit is set to ‘1’ if the UROWWRITE key is successfully decoded. This bit must be written as the final part of the user row write procedure to correctly reset the programming session.

Bit 4 – NVMPROG: NVM Programming Key Status

NVM Programming Key Status

This bit is set to ‘1’ if the NVMPROG key is successfully decoded. The bit is cleared when the NVM Programming sequence is initiated, and the NVMPROG bit in ASI_SYS_STATUS is set.

Bit 3 – CHIPERASE: Chip Erase Key Status

Chip Erase Key Status

This bit is set to ‘1’ if the Chip Erase key is successfully decoded. The bit is cleared by the Reset Request issued as part of the Chip Erase sequence described in the Chip Erase section.