Block Guide — S12BDM V4

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1.3.3 Low-Power Modes

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Wait Mode

The BDM cannot be used in wait mode if the system disables the clocks to the BDM.

There is a clearing mechanism associated with the WAIT instruction when the clocks to the BDM

(CPU core platform) are disabled. As the clocks restart from wait mode, the BDM receives a soft

reset (clearing any command in progress) and the ACK function will be disabled. This is a change

from previous BDM modules.

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Stop Mode

The BDM is completely shutdown in stop mode.

There is a clearing mechanism associated with the STOP instruction. STOP must be enabled and

the part must go into stop mode for this to occur. As the clocks restart from stop mode, the BDM

receives a soft reset (clearing any command in progress) and the ACK function will be disabled.

This is a change from previous BDM modules.