56F8167 datasheet(43/184 Pages) FREESCALE

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Interrupt Vector Table

56F8367 Technical Data, Rev. 8

Freescale Semiconductor

Preliminary

4.3 Interrupt Vector Table

Table 4-5 provides the reset and interrupt priority structure, including on-chip peripherals. The table is

organized with higher-priority vectors at the top and lower-priority interrupts lower in the table. The

priority of an interrupt can be assigned to different levels, as indicated, allowing some control over

interrupt priorities. All level 3 interrupts will be serviced before level 2, and so on. For a selected priority

level, the lowest vector number has the highest priority.

Table 4-4 Program Memory Map at Reset

Begin/End

Address

Mode 0 (MA = 0)

Mode 11 (MA = 1)

1. If Flash Security Mode is enabled, EXTBOOT Mode 1 cannot be used. See Security Features, Part 7.

Internal Boot

External Boot

Internal Boot

16-Bit External Address Bus

EMI_MODE = 02,3

16-Bit External Address Bus

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.

EMI_MODE = 14

20-Bit External Address Bus

4. “EMI_MODE = 1” when EMI_MODE pin is tied to VDD at boot up.

P:$1F FFFF

P:$10 0000

External Program Memory5

5. Not accessible in reset configuration, since the address is above P:$00 FFFF. The higher bit address/GPIO (and/or chip

selects) pins must be reconfigured before this external memory is accessible.

External Program Memory5

External Program Memory6

6. Not accessible in reset configuration, since the address is above P:$0F FFFF. The higher bit address/GPIO (and/or chip

selects) pins must be reconfigured before this external memory is accessible.

P:$0F FFFF

P:$05 0000

External Program Memory

COP Reset Address = 04 00027

Boot Location = 04 00007

7. Booting from this external address allows prototyping of the internal Boot Flash.

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

Boot Flash

32KB

COP Reset Address = 04 0002

Boot Location = 04 0000

Boot Flash

32KB

(Not Used for Boot in this Mode)

P:$03 FFFF

P:$02 0000

Internal Program Flash8

256KB

Internal Program Flash

256KB

P:$01 FFFF

P:$01 0000

Internal Program Flash8

256KB

8. Two independent program flash blocks allow one to be programmed/erased while executing from another. Each block must

have its own mass erase.

Internal Program Flash

128KB

P:$00 FFFF

P:$00 0000

External Program Memory

COP Reset Address = 00 0002

Boot Location = 00 0000

56F8167 Datasheet(PDF) 43 Page - Freescale Semiconductor, Inc

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