MC908AZ60ACFUER Datasheet, PDF (79/414 Pages) Freescale Semiconductor, Inc – To provide the most up-to-date information, the revision of our documents on the World Wide Web will be the most current. Your printed copy may be an earlier revision. To verify you have the latest information available, refer to:

EEPROM-1 Register Descriptions
AUTO — Automatic Termination of Program/Erase Cycle
When AUTO is set, EEPGM is cleared automatically after the program/erase cycle is terminated by
the internal timer.
(See note D for 6.4.5.2 EEPROM-1 Programming, 6.4.5.3 EEPROM-1 Erasing, and 28.1.13 EEPROM
Memory Characteristics)
1 = Automatic clear of EEPGM is enabled
0 = Automatic clear of EEPGM is disabled
EEPGM — EEPROM-1 Program/Erase Enable
This read/write bit enables the internal charge pump and applies the programming/erasing voltage to
the EEPROM-1 array if the EELAT bit is set and a write to a valid EEPROM-1 location has occurred.
Reset clears the EEPGM bit.
1 = EEPROM-1 programming/erasing power switched on
0 = EEPROM-1 programming/erasing power switched off
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.
6.5.2 EEPROM-1 Array Configuration Register
The EEPROM-1 array configuration register configures EEPROM-1 security and EEPROM-1 block
protection.
This read-only register is loaded with the contents of the EEPROM-1 nonvolatile register (EE1NVR) after
a reset.
Address: $FE1F
Bit 7
6
5
4
3
2
1
Bit 0
Read: UNUSED UNUSED UNUSED EEPRTCT EEBP3 EEBP2 EEBP1 EEBP0
Write:
Reset:
Contents of EE1NVR ($FE1C)
= Unimplemented
Figure 6-3. EEPROM-1 Array Configuration Register (EE1ACR)
Bit 7:5 — Unused Bits
These read/write bits are software programmable but have no functionality.
EEPRTCT — EEPROM-1 Protection Bit
The EEPRTCT bit is used to enable the security feature in the EEPROM (see EEPROM-1
Program/Erase Protection).
1 = EEPROM-1 security disabled
0 = EEPROM-1 security enabled
This feature is a write-once feature. Once the protection is enabled it may not be disabled.
MC68HC908AZ60A • MC68HC908AS60A • MC68HC908AS60E Data Sheet, Rev. 6
Freescale Semiconductor
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