PRODUCT PROPOSAL, Rev 6.1, 23-Oct-02

7

Figure 3 MC9S12Dx512 User Configurable Memory Map

$0000

$FFFF

$C000

$8000

$4000

$0400

$0800

$FF00

EXT

NORMAL

SINGLE CHIP

EXPANDED

SPECIAL

SINGLE CHIP

VECTORS

VECTORS

VECTORS

$FF00

$FFFF

BDM

(If Active)

$C000

$FFFF

16K Fixed Flash EEPROM

2K, 4K, 8K or 16K Protected Boot Sector

$8000

$BFFF

16K Page Window

thirty two * 16K Flash EEPROM Pages

$4000

$6FFF

12K Fixed Flash EEPROM

0.5K, 1K, 2K or 4K Protected Sector

$0800

$3FFF

$7000

$7FFF

4K Bytes EEPROM

Mappable to any 4K Boundary

$0000

$03FF

1K Register Space

Mappable to any 2K Boundary

Mappable to any 16K Boundary

14K Bytes RAM

4K Flash overlapped by EEPROM in this configuration

Alignable to top ($0800 - $3FFF)

or bottom ($0000 - $37FF)

The figure shows a useful map, which is not the map out of reset. After reset the map is:

$0000 - $03FF: Register Space

$0800 - $3FFF: 14K RAM

$0000 - $0FFF: 4K EEPROM (1k $0400 - $07FF visible, $0000 - $03FF and $0800 - $0FFF are not visible)

Various possibilities to make more of the EEPROM fully visible are available, one of them is shown above

EXT

$7000

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com