MC68HC08AZ0 Datasheet, PDF (66/444 Pages) Motorola, Inc – Advance Information

EEPROM
Freescale Semiconductor, Inc.
EEPROM non-volatile register (EENVR) and EEPROM array configuration register (EEACR)
EENVR
$FE1C
7
6
5
4
3
2
1
READ:
EERA
WRITE:
CON2
CON1
CON0 EEBP3 EEBP2 EEBP1
RESET: PV
PV
PV
PV
PV
PV
PV
PV = Programmed Value or ‘1’ in the erased state.
Figure 2. EEPROM non-volatile register (EENVR)
0
EEBP0
PV
EEACR
$FE1F
7
6
5
4
3
2
1
0
READ: EERA CON2 CON1 CON0 EEBP3 EEBP2 EEBP1 EEBP0
WRITE:
RESET: EENVR EENVR EENVR EENVR EENVR EENVR EENVR EENVR
= Unimplemented
Figure 3. EEPROM array control register (EEACR)
MC68HC08AZ0
64
EERA — EEPROM redundant array
This bit is reserved for future use and should always be equal to 0.
CONx — MCU configuration bits
These read/write bits can be used to enable/disable functions within
the MCU. Reset loads CONx from EENVR to EEACR.
CON2 — Unused
CON1 — Unused
CON0 — EEPROM security
1 = EEPROM security disabled
0 = EEPROM security enabled
EEBP3–EEBP0 — EEPROM block protection bits.
These read/write bits prevent blocks of EEPROM array from being
programmed or erased. Reset loads EEBP[3:0] from EENVR to
EEACR.
1 = EEPROM array block is protected
0 = EEPROM array block is unprotected
EEPROM
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Go to: www.freescale.com
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