MAC7200 datasheet(438/976 Pages) FREESCALE

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Flash Implementation

MAC7200 Microcontroller Family Reference Manual, Rev. 2

360

Freescale Semiconductor

Figure 18-2. MAC72x2 Flash Blocks and Partitions

This remapping needs to be taken into account, when accessing the H7fb control registers. For example

the MLOCK[3:0] field in the Low/Mid Address Space Block Locking Register, is mapped to the following

address ranges (using SC mode):

•

MLOCK[0] = address range 384k to 512k-1

•

MLOCK[1] = address range 256k to 384k-1

The LLOCK[15:0] mapping for SC mode is:

•

LLOCK[0] = address range 128k to 144k-1

•

LLOCK[1] = address range 144k to 160k-1

•

...

•

LLOCK[4] = address range 192k to 208k-1

•

...

•

LLOCK[8]= address range 0 to 64k-1

•

LLOCK[9]= address range 64kto 128k-1

18.3.2

MAC72x2 Flash

The Flash configuration for the MAC72x2 is as follows:

•

SFS = 1 (Special Flash selected: 320k)

•

SIZE = 1 (Normal size 512k, with SFS: 320k)

16k Block 1

128k

288k

256k

128k

32k

Shadow Block

MAS

LAS

Shown are the address

locations for Single

Chip Mode.

Block 0

Block 1

16k Block 0

16k Block 2

16k Block 3

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