56F8366_09 Datasheet, PDF (43/182 Pages) Freescale Semiconductor, Inc – 16-bit Digital Signal Controllers

Program Map
Note: Program RAM is NOT available on the 56F8166 device.
Table 4-4 Program Memory Map at Reset
Mode 0 (MA = 0)
Mode 1¹ (MA = 1)
Begin/End
Address
Internal Boot
External Boot
Internal Boot
EMI_MODE = 0²,³
EMI_MODE = 1⁴
16-Bit External Address Bus _{16-Bit External Address Bus 20-Bit External Address Bus}
P:$1F FFFF
P:$10 0000
External Program Memory⁵
External Program Memory⁵
External Program Memory⁶
P:$0F FFFF
P:$05 0000
P:$04 FFFF
P:$04 F800
On-Chip Program RAM
4KB
P:$04 F7FF
P:$04 4000
Reserved
92KB
P:$04 3FFF
P:$04 0000
P:$03 FFFF
P:$02 0000
Boot Flash
32KB
COP Reset Address = 04 0002
Boot Location = 04 0000
Internal Program Flash⁸
256KB
Boot Flash
32KB
External Program Memory
(Not Used for Boot in this Mode) _{COP Reset Address = 04 0002}⁷
Boot Location = 04 0000⁷
Internal Program Flash
256KB
P:$01 FFFF
P:$01 0000
P:$00 FFFF
P:$00 0000
Internal Program Flash⁸
256KB
Internal Program Flash
128KB
External Program Memory
COP Reset Address = 00 0002
Boot Location = 00 0000
1. If Flash Security Mode is enabled, EXTBOOT Mode 1 cannot be used. See Security Features, Part 7.
2. This mode provides maximum compatibility with 56F80x parts while operating externally.
3. “EMI_MODE =0” when EMI_MODE pin is tied to ground at boot up.
4. “EMI_MODE =1” when EMI_MODE pin is tied to V_DD at boot up.
5. Not accessible in reset configuration, since the address is above P:$00 FFFF. The higher bit address/GPIO (and/or chip se-
lects) pins must be reconfigured before this external memory is accessible.
6. Not accessible in reset configuration, since the address is above P:$0F FFFF. The higher bit address/GPIO (and/or chip se-
lects) pins must be reconfigured before this external memory is accessible.
7. Booting from this external address allows prototyping of the internal Boot Flash.
8. Two independent program flash blocks allow one to be programmed/erased while executing from another. Each block must
have its own mass erase.
56F8366 Technical Data, Rev. 7
Freescale Semiconductor
43
Preliminary