BX80557430SL9XN Datasheet, PDF (29/100 Pages) Intel Corporation – Intel® Celeron® Processor 400 Series

Electrical Specifications
2.8.2
FSB Frequency Select Signals (BSEL[2:0])
The BSEL[2:0] signals are used to select the frequency of the processor input clock
(BCLK[1:0]). Table 16 defines the possible combinations of the signals and the
frequency associated with each combination. The required frequency is determined by
the processor, chipset, and clock synthesizer. All agents must operate at the same
frequency.
The processor will operate at an 800 MHz FSB frequency (selected by a 200 MHz
BCLK[1:0] frequency). Individual processors will only operate at their specified FSB
frequency.
Table 16.
BSEL[2:0] Frequency Table for BCLK[1:0]
BSEL2
BSEL1
BSEL0
FSB Frequency
L
L
L
L
L
H
L
H
H
H
H
H
H
L
H
L
L
RESERVED
H
RESERVED
H
RESERVED
L
200 MHz
L
RESERVED
H
RESERVED
H
RESERVED
L
RESERVED
2.8.3
Phase Lock Loop (PLL) and Filter
An on-die PLL filter solution will be implemented on the processor. The VCCPLL input is
used for the PLL. Refer to Table 5 for DC specifications.
Datasheet
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