MC68HC11A1 MOTOROLA [Motorola, Inc], MC68HC11A1 Datasheet - Page 18

• Manufacturer Part Number: MC68HC11A1
• Description: 8-Bit Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

ERASE — Erase/Normal Control for EEPROM
EELAT — EEPROM Latch Control
EEPGM — EEPROM Program Command
CONFIG — COP, ROM, EEPROM Enables
NOSEC — EEPROM Security Disable
NOCOP — COP system disable
ROMON — ROM Enable
EEON — EEPROM Enable
18
MOTOROLA
RESET:
NOSEC has no meaning unless the security mask option was specified before the MCU was manufac-
tured.
Refer to 3 Resets and Interrupts.
Refer to 2 Operating Modes and Memory Maps.
0 = Normal read or program mode
1 = Erase mode
0 = EEPROM address and data bus configured for normal reads
1 = EEPROM address and data bus configured for programming or erasing
0 = Programming or erase voltage switched off to EEPROM array
1 = Programming or erase voltage switched on to EEPROM array
0 = Security enabled (available as a mask option on MC68HC11A8 only)
1 = Security disabled
0 = EEPROM is removed from the memory map
1 = EEPROM is present in the memory map
Bit 7
0
0
The bits of this register are implemented with EEPROM cells. Programming and
erasing follow normal EEPROM procedures. The erased state of CONFIG is $0F.
A new value is not readable until after a subsequent reset sequence. CONFIG can
only be programmed or erased in special modes.
6
0
0
5
0
0
4
0
0
NOSEC
NOTE
—
3
NOCOP ROMON
—
2
—
1
$103F
EEON
Bit 0
—
MC68HC11A8TS/D
MC68HC11A8