Flash Programmer for MCF5441X

The flash programmer for MCF5441X has a specific way of writing data. The flash is comprised of multiple physical pages, each of them with the size of 0x800 bytes. At boot time the processor will read data from the first 4 pages up to 0xF80 bytes. The space between address 0xF80 and 0x2000 will not be used. Assuming we write a binary file, the data will be programmed as follows:

• Binary file address 0x0 - 0xF7F will be programmed at 0x0 - 0xF7f in flash.
• Binary file addresses higher than 0xF80 will be programmed starting from 5th physical page at 0x2000.

Because of the way how the processor boots there isn't a 1 to 1 correspondence for addresses. The pages are written with the following settings:

• Boot pages (index 0 - 3): 60 ECC bytes, in NFC_CFG register BTMD is 1 and 16BIT is 0.
• User pages (index > 3): 60 ECC bytes, in NFC_CFG register BTMD is 0 and 16BIT is 1.