mc68hc08az60 Freescale Semiconductor, Inc, mc68hc08az60 Datasheet - Page 50

• Manufacturer Part Number: mc68hc08az60
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

EEPROM-1
EEPROM
Nonvolatile
Register
MC68HC08AZ60 — Rev. 1.0
50
NOTE:
Address:
The EEPROM nonvolatile register (EENVR1) is shown in
EERA — EEPROM Redundant Array
CONx — MCU Configuration Bits
CON2 — Unused
CON1— Unused
This feature is a write-once feature. Once the protection is enabled it
may not be disabled.
EEPRTCT — EEPROM Protection
EEBP3–EEBP0 — EEPROM Block Protection Bits
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
This bit is reserved for future use and should always be equal to 0.
These read/write bits can be used to enable/disable functions within
the MCU. Reset loads CONx from EENVR1 to EEACR1.
This one-time programmable bit can be used to protect 16 bytes
($8F0–$8FF) from being erased or programmed.
These read/write bits select blocks of EEPROM array from being
programmed or erased. Reset loads EEBP[3:0] from EENVR1 to
EEACR1.
For More Information On This Product,
1 = EEPROM protection disabled
0 = EEPROM protection enabled
1 = EEPROM array block is protected
0 = EEPROM array block is unprotected
Figure 2. EEPROM-1 Nonvolatile Register (EENVR1)
$FE1C
EERA
Bit 7
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CON2
= Unimplemented
6
EEPROM-1
CON1
5
EEPRTCT
4
PV = Programmed value or 1 in the erased state.
PV
EEBP3
3
EEBP2
2
EEBP1
Figure
1
MOTOROLA
10-eeprom-1
EEBP0
2.
Bit 0