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

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производитель

C68HC11KA4BCFU4

8-Bit Microcontroller

Motorola => Freescale 

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 VDD 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

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