MC68HCP11 Datasheet, PDF (18/45 Pages) Motorola, Inc – 8-Bit Microcontroller

ERASE — Erase/Normal Control for EEPROM
0 = Normal read or program mode
1 = Erase mode
EELAT — EEPROM Latch Control
0 = EEPROM address and data bus configured for normal reads
1 = EEPROM address and data bus configured for programming or erasing
EEPGM — EEPROM Program Command
0 = Programming or erase voltage switched off to EEPROM array
1 = Programming or erase voltage switched on to EEPROM array
CONFIG — COP, ROM, EEPROM Enables
Bit 7
6
5
4
0
0
0
0
RESET:
0
0
0
0
$103F
3
NOSEC
—
2
NOCOP
—
1
ROMON
—
Bit 0
EEON
—
NOTE
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.
NOSEC — EEPROM Security Disable
NOSEC has no meaning unless the security mask option was specified before the MCU was manufac-
tured.
0 = Security enabled (available as a mask option on MC68HC11A8 only)
1 = Security disabled
NOCOP — COP system disable
Refer to 3 Resets and Interrupts.
ROMON — ROM Enable
Refer to 2 Operating Modes and Memory Maps.
EEON — EEPROM Enable
0 = EEPROM is removed from the memory map
1 = EEPROM is present in the memory map
MOTOROLA
18
MC68HC11A8
MC68HC11A8TS/D