9
7321 N/B Maintenance
7321 N/B Maintenance
1.2.2 System frequency synthesizer_ICS9248-193
1 – Differential pair open drain CPU clocks
1 – CPU clock @ 3.3V
7 – SDRAM @ 3.3V
8 – PCI @ 3.3V
1 – 48MHz @ 3.3V fixed
1 – 24/48MHz @ 3.3V
3 – REF @ 3.3V, 14.318MHz
Up to 166MHz frequency support
Support power management via hardware select CPU stop, PCI stop, and SDRAM stop
Support power management via I
2
C programming
Spread spectrum for EMI control (
±
0.25% to
±
0.06% center, or 0 to –0.5% or –1.0% down spread)
Uses external 14.318MHz crystal
CPU – CPU Skew: <175ps
CPU – PCI Skew:
±
100ps
PCI – PCI Skew: <500ps
CPU – SDRAM Skew:
±
125ps
Summary of Contents for MiNote 7321
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