DSP56F826 Motorola, DSP56F826 Datasheet - Page 24

• Manufacturer Part Number: DSP56F826
• Description: 16-bit Digital Signal Processor
• Manufacturer: Motorola

3.5 External Clock Operation
The DSP56F826 system clock can be derived from a crystal or an external system clock signal. To generate
a reference frequency using the internal oscillator, a reference crystal must be connected between the
EXTAL and XTAL pins.
3.5.1
The internal oscillator is also designed to interface with a parallel-resonant crystal resonator in the frequency
range specified for the external crystal in
Follow the crystal supplier’s recommendations when selecting a crystal, because crystal parameters
determine the component values required to provide maximum stability and reliable start-up. The crystal
and associated components should be mounted as close as possible to the EXTAL and XTAL pins to
minimize output distortion and start-up stabilization time.
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IFREN
XADR
ERASE
NVSTR
MAS1
YE=SE=OE=0
XE
Crystal Oscillator
Tnvs
Figure 7. Flash Mass Erase Cycle
DSP56F826 Preliminary Technical Data
Table
13. In
Tme
Figure 8
a typical crystal oscillator circuit is shown.
Tnvh1
Trcv