cy28548 SpectraLinear Inc, cy28548 Datasheet - Page 20

• Manufacturer Part Number: cy28548
• Description: Clock Generator For Intel Crestline Chipset
• Manufacturer: SpectraLinear Inc

CY28548
Table 8. PLL3/SE Configuration Table (continued)
GCLK_SEL
B1b4
B1b3
B1b2
B1b1
Pin 17 MHz
Pin 18 MHz
Spread (%)
Comment
1
1
1
0
1
N/A
N/A
N/A
Figure 12. Clock Generator Power up/Run State Diagram
C l o c k O f f t o M 1
3.3V
Vcc
2.0V
T_delay t
FSC
FSB
FSA
CPU_STOP#
PCI_STOP#
CKPWRGD/PWRDWN
CK505 SMBUS
Off
Latches Open
M1
CK505 State
Off
BSEL[0..2]
CK505 Core Logic
Off
PLL1
Locked
CPU1
PLL2 & PLL3
All Other Clocks
REF Oscillator
T_delay2
T_delay3
Figure 13. BSEL Serial Latching
Rev 1.5 September 16, 2008
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