MAC7200 datasheet(89/976 Pages) FREESCALE

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Modes of Operation

MAC7200 Microcontroller Family Reference Manual, Rev. 2

Freescale Semiconductor

•

Relocate Flash main array to $2000 0000

— Shadow Block available at $20f0 0000

•

JTAG Lockout Recovery is available

1.3.4

PBL Chip mode (Unsecured)

•

Same as Single Chip mode, except boot from the Shadow Block

•

EICE/Nexus/JTAG active

— Enable TCK, TDI, TDO and DBGEN

•

No FlexBus

•

Relocate Shadow Block to $0000 0000

•

Relocate Flash main array to $2000 0000

— Shadow Block available at $20f0 0000

•

JTAG Lockout Recovery is available

1.3.5

Expanded Chip mode (Secured)

•

EICE/Nexus/JTAG active

— Enable TCK, TDI, TDO and DBGEN

•

Disable Flash Main Array and Shadow Block access

•

Relocate FlexBus to $0000 0000

•

Boot from FlexBus

1.3.6

Expanded Chip mode (Unsecured)

•

EICE/Nexus/JTAG active

— Enable TCK, TDI, TDO and DBGEN

•

Relocate Flash to $2000 0000

— Shadow Block available at $20f0 0000

•

Relocate FlexBus to $0000 0000

•

Boot from FlexBus

See Chapter 9, “Device Memory Map” for more detailed information on how each chip mode affects

relocation of system resources.

1.3.7

Low Power Modes

The microcontroller features only a single low power mode:

•

DOZE Mode. In this mode, individual peripherals may be shut down to allow a completely

customizable power consumption profile tailored to the requirements of the application.

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