MC68HC11KA4TS Datasheet, PDF (24/68 Pages) Motorola, Inc – 8-Bit Microcontroller

BPROT —Block Protect
$0035
RESET:
Bit 7
BULKP
1
6
LVPEN
1
5
BPRT4
1
4
PTCON
1
3
BPRT3
1
2
BPRT2
1
1
BPRT1
1
Bit 0
BPRT0
1
NOTE
Block protect register bits can be written to zero (protection disabled) only once
within 64 cycles of a reset in normal modes, or at any time in special mode. Block
protect register bits can be written to one (protection enabled) at any time.
BULKP — Bulk Erase of EEPROM Protect
0 = EEPROM can be bulk erased normally
1 = EEPROM cannot be bulk or row erased
LVPEN — Low Voltage Programming Protect Enable
If LVPEN = 1, programming of the EEPROM is enabled unless the LVPI circuit detects that V_DD has
fallen below a safe operating voltage thus setting the low voltage programming inhibit bit in PPROG reg-
ister (LVPI = 1).
0 = Low voltage programming protect for EEPROM disabled
1 = Low voltage programming protect for EEPROM enabled
BPRT[4:0] —Block Protect Bits for EEPROM
0 = Protection disabled
1 = Protection enabled
Bit Name
BPRT4
BPRT3
BPRT2
BPRT1
BPRT0
Block Protected
$xF80–$xFFF
$xE60–$xF7F
$xDE0–$xE5F
$xDA0–$xDDF
$xD80–$xD9F
Block Size
128 Bytes
288 Bytes
128 Bytes
64 Bytes
32 Bytes
PTCON — Protect for CONFIG
0 = CONFIG register can be programmed or erased normally
1 = CONFIG register cannot be programmed or erased
INIT2 —EEPROM Mapping
$0037
Bit 7
6
5
4
3
2
1
Bit 0
EE3
EE2
EE1
EE0
—
—
—
—
RESET:
0
0
0
0
0
0
0
0
INIT2 can be written only once in normal modes, any time in special modes.
EE[3:0] — EEPROM Map Position
EEPROM is at $xD80–$xFFF, where x is the hexadecimal digit represented by EE[3:0] bits.
Bits [3:0] — Not implemented
Always read zero
MOTOROLA
24
MC68HC11KA4
MC68HC11KA4TS/D