DSP56307/D View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
DSP56307/D Datasheet PDF : 156 Pages
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Signals/Connections
Clock
CLOCK
Table 1-4 Clock Signals
Signal
Name
EXTAL
XTAL
Type
Input
Output
State During
Reset
Signal Description
Input
External Clock/Crystal InputÑEXTAL interfaces the
internal crystal oscillator input to an external crystal or
an external clock.
Chip-driven
Crystal OutputÑXTAL connects the internal crystal
oscillator output to an external crystal. If an external
clock is used, leave XTAL unconnected.
PLL
Signal
Name
PCAP
CLKOUT
Table 1-5 Phase-Locked Loop Signals
Type
Input
State During
Reset
Signal Description
Input
PLL CapacitorÑPCAP is an input connecting an
off-chip capacitor to the PLL filter. Connect one
capacitor terminal to PCAP and the other terminal to
VCCP.
Output Chip-driven
If the PLL is not used, PCAP may be tied to VCC,
GND, or left floating.
Clock OutputÑCLKOUT provides an output clock
synchronized to the internal core clock phase.
If the PLL is enabled and both the multiplication and
division factors equal one, then CLKOUT is also
synchronized to EXTAL.
If the PLL is disabled, the CLKOUT frequency is half
the frequency of EXTAL.
Not Recommended for New Design
MOTOROLA
DSP56307 Technical Data
1-5
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