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ADP1046AACPZ-R7 数据表(PDF) 79 Page - Analog Devices |
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ADP1046AACPZ-R7 数据表(HTML) 79 Page - Analog Devices |
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79 / 88 page  Data Sheet ADP1046A Rev. 0 | Page 79 of 88 EEPROM REGISTERS Refer to the I2C 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. |
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