APR2SLASHD datasheet(84/101 Pages) NXP

84 / 101 page

4-10

DSP56001A/D, Rev. 1

MOTOROLA

DSP56001A

Application Examples

APPLICATION EXAMPLES

The lowest cost DSP56001A-based system is shown in Figure 4-1. It uses no run time external

memory and requires only two chips, the DSP56001A and a low cost EPROM. The EPROM read

access time should be less than 780 nanoseconds when the DSP56001A is operating at a clock rate

of 20.5 MHz.

Figure 4-1 No Glue Logic, Low Cost Memory Port Bootstrap—Mode 1

A0–A10

D0–D7

2716

MBD301*

+5 V

From Open

Collector

Buffer

From

Reset

Function

From Open

Collector

Buffer

DSP56001A

A0–A10

D0–D7

MODA/IRQA

RESET

MODB/IRQB

HACK

D23

Note:

*These diodes must be Schottky diodes.

All resistors are 15 K

Ω unless noted otherwise.

When in Reset, IRQA and IRQB must be deasserted by external peripherals.

AA0904

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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