MC68HC11KA4TS Datasheet, PDF (25/68 Pages) Motorola, Inc – 8-Bit Microcontroller

PPROG — EEPROM Programming Control
$003B
RESET:
Bit 7
ODD
0
6
EVEN
0
5
LVPI
0
4
BYTE
0
3
ROW
0
2
ERASE
0
1
EELAT
0
Bit 0
EEPGM
0
ODD — Program Odd Rows in Half of EEPROM (TEST)
EVEN — Program Even Rows in Half of EEPROM (TEST)
LVPI — Low Voltage Programming Inhibit
LVPI can be read at any time and writes to LVPI have no meaning nor effect. LVPI is set if LVPEN bit
in BPROT register equals 1 and the LVPI circuit detects that V_DD has fallen below a safe operating volt-
age. Once set, LVPI is cleared when V_DD returns to a safe operating voltage or if LVPEN bit in BPROT
register is cleared. If LVPEN = 0, then LVPI is always zero and has no meaning nor effect.
0 = EEPROM programming enabled
1 = EEPROM programming disabled
BYTE — Byte/Other EEPROM Erase Mode
0 = Row or bulk erase mode used
1 = Erase only one byte of EEPROM
ROW — Row/All EEPROM Erase Mode (only valid when BYTE = 0)
0 = All 640 bytes of EEPROM erased
1 = Erase only one 16-byte row of EEPROM
BYTE
0
0
1
1
ROW
0
1
0
1
Action
Bulk Erase (All 640 Bytes)
Row Erase (16 Bytes)
Byte Erase
Byte Erase
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 = Program or erase voltage switched off to EEPROM array
1 = Program or erase voltage switched on to EEPROM array
Refer also to INIT2 register.
MC68HC11KA4
MC68HC11KA4TS/D
MOTOROLA
25