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DSP56600FM/AD Datasheet(PDF) 41 Page - NXP Semiconductors |
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DSP56600FM/AD Datasheet(HTML) 41 Page - NXP Semiconductors |
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41 / 76 page  DSP56652 DSP56652 Signal Description Preliminary MOTOROLA DSP56652 Technical Data Sheet 1-35 Debug Control Port If the MUX_CTL signal is driven high, the alternate MCU_DE and DSP_DE signal locations are selected, and this interface is disabled. For debug port control signals equipped with resistors, all pull-ups and pull-downs are automatically disconnected when the pin is an output. Table 1-21 Debug Port Control Signals Signal Name Signal Type State during Reset Signal Description MCU_DE Input Output Input Microcontroller debug event ÑAs an input signal, this signal provides a means to enter the debug mode of operation from an external command converter. An an output signal, it acknowledges that the MCU has entered the debug mode. This signal is equipped with an open-drain 47k W pull-up resistor. When the MCU enters the debug mode due to a debug request or as the result of meeting a breakpoint condition, it asserts MCU_DE as an output signal for three clock cycles. DSP_DE Input Output Input Digital signal processor debug event ÑAs an input signal, this signal provides a means to enter the debug mode of operation from an external command converter. An an output signal, it acknow- ledges that the DSP has entered the debug mode.This signal is equipped with an open-drain 4k W K pull-up resistor. When the DSP enters the debug mode due to a debug request or as the result of meeting a breakpoint condition, it asserts DSP_DE as an output signal for three clock cycles. Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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