Datasheet

Data Sheet ADP1046A
Rev. 0 | Page 79 of 88
EEPROM REGISTERS
Refer to the I
2
C communication protocol specification for more information about how to write these commands to the ADP1046A.
Table 119. Register 0x81—RESTORE_DEFAULT_ALL
Bits Bit Name Type Description
N/A RESTORE_DEFAULT_ALL Send
byte
Download the factory default settings from EEPROM (Page 0 of the main block) into
operating memory. The password is also reset to the default value (0xFF).
Table 120. Register 0x82—STORE_USER_ALL
Bits Bit Name Type Description
N/A STORE_USER_ALL Send
byte
Copy the entire contents of operating memory (registers) into EEPROM (Page 1 of the main
block). The EEPROM must first be unlocked.
Table 121. Register 0x83—RESTORE_USER_ALL
Bits Bit Name Type Description
N/A RESTORE_USER_ALL Send
byte
Download the stored user settings from EEPROM (Page 1 of the main block) into operating
memory. The EEPROM must first be unlocked.
Table 122. Register 0x84—EEPROM_CRC_CHKSUM
Bits Bit Name Type Description
[7:0] EEPROM_CRC_CHKSUM R Return the CRC checksum value from the EEPROM download operation.
Table 123. Register 0x85—EEPROM_ADDR_OFFSET
Bits Bit Name Type Description
[15:0] EEPROM_ADDR_OFFSET R/W Set the address offset of the current EEPROM page.
Table 124. Register 0x86—EEPROM_NUM_RD_BYTES
Bits Bit Name Type Description
[7:0] EEPROM_NUM_RD_BYTES R/W Set the number of read bytes returned when using the EEPROM_DATA_xx command.
Table 125. Register 0x87—EEPROM_PAGE_ERASE
Bits Bit Name Type Description
[7:4] Reserved R Reserved.
[3:0] EEPROM_PAGE_ERASE W Perform a page erase on the selected EEPROM page (Page 4 to Page 15). Wait 35 ms after
each page erase operation. The EEPROM must first be unlocked. Page 0 and Page 1 are
reserved for storing the default settings and user settings, respectively. The user cannot
perform a page erase of Page 0 or Page 1. Page 2 and Page 3 are reserved for internal use;
do not erase the contents of Page 2 or Page 3.
Table 126. Register 0x88—EEPROM_PASSWORD
Bits Bit Name Type Description
[7:0] EEPROM_PASSWORD W Write the password to this register two consecutive times to unlock the EEPROM and/or to
change the EEPROM password. The factory default password is 0xFF. To lock the EEPROM,
type any value other than the password to this register.
Table 127. Register 0x89—TRIM_PASSWORD
Bits Bit Name Type Description
[7:0] TRIM_PASSWORD R/W Write the password to this register to unlock the trim registers for write access. Write the
trim password twice to unlock the register; write any other value to exit. The trim password
is the same as the EEPROM password.