EEPROM-2 Memory
EEPROM-2 Register Descriptions
MC68HC908AZ60A — Rev 2.0 Technical Data
MOTOROLA EEPROM-2 Memory 121
NOTE: Writing logic 0s to both the EELAT and EEPGM bits with a single
instruction will clear EEPGM only to allow time for the removal of high
voltage.
7.6.2 EEPROM-2 Array Configuration Register
The EEPROM-2 array configuration register configures EEPROM-2
security and EEPROM-2 block protection.
This read-only register is loaded with the contents of the EEPROM-2
non-volatile register (EE2NVR) after a reset.
Bit 7:5 — Unused Bits
These read/write bits are software programmable but have no
functionality.
EEPRTCT — EEPROM-2 Protection Bit
The EEPRTCT bit is used to enable the security feature in the
EEPROM (see EEPROM-2 Program/Erase Protection).
1 = EEPROM-2 security disabled
0 = EEPROM-2 security enabled
This feature is a write-once feature. Once the protection is enabled it
may not be disabled.
Address: $FF7F
Bit 7 6 5 4 3 2 1 Bit 0
Read: UNUSED UNUSED UNUSED EEPRTCT EEBP3 EEBP2 EEBP1 EEBP0
Write:
Reset: Contents of EE2NVR ($FF7C)
Figure 7-3. EEPROM-2 Array Configuration Register (EE2ACR)
