EB381D 查看數據表（PDF） - Motorola => Freescale

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EB381D

Migrating from the MC68HC811E2 to the MC68HC11F1

Motorola => Freescale 

Freescale Semiconductor, Inc.

Engineering Bulletin

$0000

$1000

EXTERNAL

EXTERNAL

x000

x3FF

1024 BYTES RAM(1)

y000

96-BYTE REGISTER BLOCK(2)

yo5F

EXTERNAL

EXTERNAL

BF00

256 BYTES BOOTSTRAP ROM

BFC0

BFFF

SPECIAL MODE(3)

INTERRUPT

VECTORS

zD00

zDFF

zE00

256 BYTES RESERVED(4)

SPECIAL TEST MODE ONLY

512 BYTES EEPROM(5)

$FE00

$FFFF

FFC0 NORMAL MODE

EXT

INTERRUPT

zFFF

FFFF VECTORS

SINGLE EXPANDED BOOTSTRAP SPECIAL

CHIP

TEST

Notes:

1. RAM can be remapped to any 4-byte boundary ($x000). “x” represents the value contained in RAM [3:0] in the INIT register.

2. The register block can be remapped to any 4-byte boundary ($y000). “y” represents the value contained in REG[3:0] in the

INIT register.

3. Special test mode vectors are externally addressed.

4. In special test mode the address locations $zD00–$zDFF are not externally addressable. “z” represents the value of bits

EE[3:0] in the CONFIG register.

5. EEPROM can be remapped to any 4-byte boundary ($z000). “z” represents the value contained in EE[3:0] in the CONFIG

register.

Figure 4. MC68HC11F1 Memory Map

Difference:

EEPROM Block

Protect

8

Since these two parts differ significantly regarding EEPROM size and

location, the address range and block size that can be protected is

different. See Figure 5, Table 2, and Table 3.

Case 1

Example:

EEPROM block protect

Issue:

EEPROM block protect addresses and sizes are

different.

Change required: The BPRT bits in the BPROT register ($1035)

must be changed to protect the address ranges

and block sizes the user desires.

For More Information On This Product,

Go to: www.freescale.com

EB381

MOTOROLA

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