MC68HC08AZ0 Datasheet, PDF (140/444 Pages) Motorola, Inc – Advance Information

Mask Options
Freescale Semiconductor, Inc.
STOP — STOP enable bit
STOP enables the STOP instruction.
1 = STOP instruction enabled
0 = STOP instruction treated as illegal opcode
The STOP instruction is enabled on the MC68HC08AZ0.
COPD — COP disable bit
COPD disables the COP module. See
Computer Operating Properly Module (COP) on page 159.
1 = COP module disabled
0 = COP module enabled
The COP module is enabled on the MC68HC08AZ0.
Bit 7
6
5
4
3
2
1
Bit 0
MORB
$003F
Read:
Write:
EESEC
Reset:
Unaffected by reset
= Unimplemented
Figure 10. Mask option register B (MORB)
EESEC — EEPROM security enable bit.
EESEC enables the EEPROM security function. Setting EESEC
prevents program/erase access to locations $8F0 – $8FF of the
EEPROM array and to the EEACR/EENVR configuration registers.
See MC68HC08AZ0 EEPROM Security on page 61
1 = EEPROM security function enabled
0 = EEPROM security function disabled
The EEPROM security function on the MC68HC08AZ0 is enabled.
Extra care should be exercised when selecting mask option
registers since other HC08 family parts may have different options.
If in doubt, check with your local field applications representative.
MC68HC08AZ0
138
Mask Options
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