IDTCV115C View Datasheet(PDF) - Integrated Device Technology
Part Name
Description
Manufacturer
IDTCV115C Datasheet PDF : 19 Pages
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IDTCV115C
PROGRAMMABLE FLEXPC™ CLOCK FOR P4 PROCESSOR
COMMERCIAL TEMPERATURE RANGE
S.E. CLOCK STRENGTH SELECTION (PCI, REF, USB48)
Str[1:0]
Multiple loads
Single loads
00
2L
Recommend
01
1H
Recommend
10
1L
Recommend
11
2H
Recommend
USB48
Recommend
Recommend
SSC MAGNITUDE CONTROL, SMC
SMC[2:0]
000
001
010
011
100
101
110
111
%
OFF
- 0.25
- 0.5
±0.125
±0.25
±0.375
±0.5
±0.75
PCI
When Byte5 bit6 = 0; otherwise, PCI = SRC frequency/3
PCIS[1:0]
PCI
00
33.33
01
36.36
10
40
11
S_CBS[1:0], H_CBS[1:0] BAND
SELECTION
S_CBS/H_CBS[1:0]
00
01
10
11
FS[C,B,A]
CB1_[2:0], byte17, CPU PLL Mode selection1
CB2_[2:0], byte17, CPU PLL Mode selection2
Don’t care
S_CNS, S_PNS, H_CNS,H_PNS N
SELECTION
NS[1:0]
00
01
10
11
Standard of Each CPU Mode (Band)
N Selection 1
N Selection 2
Don’t care
RESOLUTION
CPU = 100MHz mode
CPU = 133MHz mode
CPU = 166MHz mode
CPU = 200MHz mode
CPU = 266MHz mode
CPU = 333MHz mode
CPU = 400MHz mode
SRC (PCI Express)
N Resolution (MHz)
%
N=
0.666667
0.67% 150
0.888889
0.67% 150
1.333333
0.8%
125
1.333333
0.67% 150
2.666667
1.00% 100
2.666667
0.8%
125
2.666667
0.67% 150
0.666667
0.67% 150
CB1[2:0]. CB2[2:0], CPU MODE
SELECTION
CB[2:0]
CPU Mode, MHz
101
100
001
133
011
166
010
200
000
266
100
333
110
400
111
Reserve
5
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