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HOLD_ - I HOLD request pin
To request the DSP to release control of external memory chips, an
external device can drive this active-low signal. For details, see
HOLD Requests on page 5-41.
HOLDA_ - O HOLD acknowledge pin When the EMIF receives a HOLD
request from an external device (on the HOLD_ pin), the EMIF
completes any current activity. Then it places the external
bus pins in the high impedance state and sends acknowledgement on
the HOLDA_ pin. The external device should wait until HOLDA_
is driven low before accessing external memory chips.
For details, see HOLD Requests on page 5-41.
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Ну воощем нет так нет, а как заставить процессор свалить с шины?
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