C68HC11KA4BCFU4 Просмотр технического описания (PDF) - Motorola => Freescale

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производитель

C68HC11KA4BCFU4

8-Bit Microcontroller

Motorola => Freescale 

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 VDD has fallen below a safe operating volt-

age. Once set, LVPI is cleared when VDD 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

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