PI6C104 데이터 시트보기 (PDF) - Pericom Semiconductor
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PI6C104 Datasheet PDF : 14 Pages
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PI6C104
Spread Spectrum Clock Synthesizer
for Desktop Pentium II 111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222333444555666777888999000111222333444555666777888999000111222111222333444555666777888999000111222
Byte 3 : Frequency, Spread Spectrum
Bit # Pup Pin # Name
Description
7
~
RSVD Reserved
6
~
S0 Frequency Select Bit 0
5
~
S1 Frequency Select Bit 1
4
~
S2 Frequency Select Bit 2
3
0
~
SFS
0 = Hardware Frequency Select
1 = Software Frequency Select (12C reg.)
2
~
RSVD Reserved
1
~ MODE1 Mode Bit 1
0
~ MODE0 Mode Bit 0
M1 M0
0 0 Spread Spectrum Off
0 1 Test Mode
1 0 Spread Spectrum On
1 1 Hi-Z
Byte 4 : Clock Controls (1 = Enabled, 0 = Disabled)
Bit # Pup Pin # Name
Description
7
~
6
~
5
0
~
RSVD
Reserved
4
~
3
~
2
1
21 CPU1EN CPUCLK1 Enable, Default is Enable
1
0
~ RSVD
Reserved
0
1
22 CPU0EN CPUCLK0 Enable, Default is Enable
Byte 5 : PCI Clock Control (1 = Enabled, 0 = Disabled)
Bit # Pup Pin # Name
Description
7
1
4 PCIFEN PCI_F Enable, Default is Enable
6
0
11 PCI6EN PCI6 Enable, Default is Enable
5
1
10 PCI5EN PCI5 Enable, Default is Enable
4
0
~
~ Reserved
3
8 PCI4EN PCI4 Enable, Default is Enable
2
7 PCI3EN PCI3 Enable, Default is Enable
1
1
6 PCI2EN PCI2 Enable, Default is Enable
0
5 PCI1EN PCI1 Enable, Default is Enable
237
PS8164B 03/15/99
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