MC56F8346 Freescale Semiconductor, Inc, MC56F8346 Datasheet - Page 50

• Manufacturer Part Number: MC56F8346
• Description: 56f8300 16-bit Digital Signal Controllers
• Manufacturer: Freescale Semiconductor, Inc

Program Memory buses. They are controlled by one set of banked registers. Data Memory Flash resides
on the Data Memory buses and is controlled separately by own set of banked registers.
The top nine words of the Program Memory Flash are treated as special memory locations. The content of
these words is used to control the operation of the Flash Controller. Because these words are part of the
Flash Memory content, their state is maintained during power-down and reset. During chip initialization,
the content of these memory locations is loaded into Flash Memory control registers, detailed in the Flash
Memory chapter of the 56F8300 Peripheral User Manual. These configuration parameters are located
between $00_FFF7 and $00_FFFF.
Table 4-7
Note: Data Flash is NOT available on the 56F8146 device.
Please see 56F8300 Peripheral User Manual for additional Flash information.
50
PROG_FLASH_START + $00_FFFF
PROG_FLASH_START + $00_FFF7
PROG_FLASH_START + $00_FFF6
PROG_FLASH_START = $00_0000
BOOT_FLASH_START = $02_0000
Program Flash
Data Flash
BOOT_FLASH_START + $1FFF
Boot Flash
shows the page and sector sizes used within each Flash memory block on the chip.
128K Bytes
Flash Size
Program Memory
128KB
Figure 4-1 Flash Array Memory Maps
Block 0 Even
Table 4-7. Flash Memory Partitions
8KB
8KB
Block 0 Odd
Configure Field
Reserved
Boot
8KB
56F8346 Technical Data, Rev. 15
BLOCK 0 Odd (2 Bytes) $00_0003
BLOCK 0 Even (2 Bytes) $00_0002
BLOCK 0 Odd (2 Bytes) $00_0001
BLOCK 0 Even (2 Bytes) $00_0000
Sectors
FM_PROG_MEM_TOP = $00_FFFF
16
16
4
DATA_FLASH_START + $0FFF
DATA_FLASH_START + $0000
256 x 16 bits
Sector Size
4K x 16 bits
1K x 16 bits
FM_BASE + $14
FM_BASE + $00
Note: Data Flash is
NOT available in the
56F8146 device.
Unbanked Registers
Data Memory
Banked Registers
Freescale Semiconductor
512 x 16 bits
256 x 16 bits
256 x 16 bits
Page Size
8KB
Preliminary