
Schematic Diagrams
CLOCK GENERATOR
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  | CKVDD  | 
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  | L31  | 
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  | U5  | 
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  | RP1  | 
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+3VS  | 1  | 2  | 
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  | 1  | VDDA  | 
  | CPUCLK8T0  | 56  | 
  | 1  | 4  | CPUCLK  | CPUCLK (3)  | |
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  | 2  | 3  | CPUCLK#  | |||||||
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  | C588  | C662  | C612  | C640  | C661  | C613  | 
  | 10  | VDDREF  | 
  | CPUCLK8C0  | 
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  | RP2  | CPUCLK#(3)  | |||
  | C122  | 
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  | 0.1UF  | 0.1UF  | 0.01UF  | 0.01UF  | 
  | 16  | VDDPCI  | 
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  | 1  | 4  | HCLK  | HCLK  | (10)  | 
  | 0.1UF  | 10UF(0805)  | 1UF(0603)  | 
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  | 20  | VDDPCI  | 
  | CPUCLK8T1  | 52  | 
  | 2  | 3  | HCLK#  | |||
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  | 21  | VDD  | 
  | CPUCLK8C1  | 
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  | RP3  | HCLK#  | (10)  | ||
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  | 26  | VDD48  | 
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  | 1  | 4  | SRCCLK_VGA  | SRCCLK_VGA(14)  | |
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  | L37  | 
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  | 39  | VDDAGP  | 
  | PCIEXT0  | 46  | 
  | 2  | 3  | SRCCLK_VGA#  | ||
  | +3VS  | 1  | 2  | 
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  | 45  | VDDPCIEX  | 
  | PCIEXC0  | 
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  | RP4  | SRCCLK_VGA#(14)  | |||
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  | 51  | VDDPCIEX  | 
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  | 1  | 4  | PECLK_NB  | PECLK_NB(9)  | ||||
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  | C671  | C652  | C641  | C159  | 
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  | VDDCPU  | 
  | PCIEXT1  | 43  | 
  | 2  | 3  | PECLK_NB#  | ||
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  | C158  | 
  | 10UF(0805)  | 0.1UF  | 0.01UF  | 0.01UF  | 
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  | PCIEXC1  | 
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  | PECLK_NB#(9) | |
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  | 0.1UF  | 
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  | 2  | GND  | 
  | PCIEXT2  | 42  | T  | 
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  | GNDREF  | 
  | PCIEXC2  | T  | 
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  | GNDPCI  | 
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  | 24  | GNDPCI  | 
  | PCIEXT3  | 37  | T  | 
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  | GND48  | 
  | PCIEXC3  | T  | 
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  | GNDAGP  | 
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  | GNDPCIEX  | 
  | PCIEXT4  | T  | 
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  | GNDPCIEX  | 
  | PCIEXC4  | T  | 
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  | 54  | GND  | 
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  | GNDCPU  | 
  | PCIEXT5  | 33  | T  | 
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  | PCIEXC5  | T  | 
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  | SMBCLK  | 
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  | VCLK_NB  | 
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  | (5,12,20,27) SMBCLK  | 
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  | 31  | SCLK  | 
  | AGPCLK0  | 29  | FS4  | R126  | 22  | VCLK_NB (10)  | |||||
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  | (5,12,20,27) SMBDATA  | 
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  | SMBDATA  | 
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  | 48  | SDATA  | 
  | FS4/AGPCLK1  | 27  | 
  | R127  | 22  | VCLK_SB  | VCLK_SB (13)  | |||
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  | AGPCLK2  | 
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  | R505  | 22  | PCLK_FWH  | |||||
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  | C614  | C663  | 
  | +3VS  | R495  | 10K  | 9  | VTTPWRGD/PD#  | FS2/PCI0  | 11  | FS2  | R107  | 22  | PCLKSIO  | PCLK_FWH(22)  | ||
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  | RESET#  | 
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  | 12  | FS3  | R108  | 22  | PCLKLAN  | PCLKSIO(22)  | |||||||
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  | FS3/PCI1  | 13  | 
  | R111  | 22  | PCLK1394  | PCLKLAN (20)  | ||
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  | 100PF(R)  | 100PF(R)  | 
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  | RESET#  | 
  | PCI2  | 14  | 
  | R112  | 22  | PCLKH8  | PCLK1394 (19)  | |
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  | R106  | 475_1%  | 
  | 49  | IREF  | 
  | PCI3  | 17  | 
  | R113  | 22  | PCLKPCM  | PCLKH8 (24)  | |
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  | PCI4  | 18  | 
  | R117  | 22  | PCLKSB  | PCLKPCM(17)  | ||
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  | PCI5  | 
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  | R510  | 22  | PCLKMINI1  | PCLKSB (13)  | |
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  | C129 22PF  | 
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  | R114  | 22  | PCLKMINI2  | PCLKMINI1(29)  | |
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  | X1  | 
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  | FS0  | R485  | 22  | APICCLK  | PCLKMINI2(29)  | |
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  | X1  | 
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  | FS0/REF0  | 4  | R102  | 22  | SIO_OSC  | APICCLK(13)  | ||
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  | D04 | 
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  | 5  | FS1  | R103  | 22  | CODECCLK14  | SIO_OSC(12)  | |||
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  | 14.31M  | 
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  | FS1/REF1  | 22  | 
  | R118  | 33  | USBCLK48  | CODECCLK14(25)  | ||
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  | 48MHz  | 
  | USBCLK48(11)  | ||||||
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  | C128 22PF  | 
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  | 7  | X2  | 
  | 23  | 48MHZSEL  | R131  | 22  | SIOCLK48  | |||
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  | SEL24_48#/24_48MHz  | 
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  | SIOCLK48(22)  | |||
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  | ICS953201  | 
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Clock Synthesizer
PECLK_NB  | R105  | 49.9_1%  | |||
PECLK_NB#  | R110  | 
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  | 49.9_1%  | 
SRCCLK_VGA  | R496  | 49.9_1%  | |||
SRCCLK_VGA# R506  | 
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  | 49.9_1%  | |
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  | Place these components close to their  | ||
  | respective series damping resistor of  | ||
  | the clock ouput.  | 
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  | 48MHZSEL R132  | 10K  | 
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  | +3VS  | 
FS_0  | FS0  | R481  | 10K  | 
FS_1  | FS1  | R482  | 10K  | 
FS_2  | FS2  | R491  | 10K(R)  | 
FS_3  | FS3  | R492  | 10K(R)  | 
FS_4 | FS4  | R128  | 10K  | 
R129 R494 R493 R484 R483
8.2K(R) 8.2K 8.2K 8.2K(R) 8.2K(R)
Place these components close to their respective series damping resistor of the clock ouput.
Set FS_[4:0] value at 10011 for default frequencies as below:
CPU  | PCIEX  | AGP  | PCI  | 
200.00  | 100.00  | 66.67  | 33.33  | 
  | PCLKSB  | C659  | 10PF(R)  | 
Sheet 2 of 40
CLOCK
GENERATOR
B.Schematic
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  | R136  | 10K  | 
(3,10,11,13,31) ALL_PWRGD  | ALL_PWRGD R130  | 0(R)  | RESET#  | |
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+3VS
+3VS (8,9,10,11,12,13,14,15,16,19,20,21,22,24,25,27,29,31,32,33)
+3VS
FS_[4:0]  | CPU  | PCIEX  | AGP  | PCI  | FS_[4:0]  | CPU  | PCIEX  | AGP  | PCI  | 
00000  | 100.90  | 100.90  | 67.27  | 33.63  | 10000  | 100.00  | 100.00  | 66.67  | 33.33  | 
00001  | 133.90  | 100.43  | 66.95  | 33.48  | 10001  | 133.00  | 100.00  | 66.67  | 33.33  | 
00010  | 168.00  | 100.80  | 67.20  | 33.60  | 10010  | 166.66  | 104.16  | 69.44  | 34.72  | 
00011  | 202.00  | 101.00  | 67.33  | 33.67  | 10011 | 200.00 | 100.00 | 66.67 | 33.33 | 
00100  | 100.20  | 100.20  | 66.80  | 33.40  | 10100  | 103.00  | 103.00  | 68.67  | 34.33  | 
00101  | 133.50  | 100.13  | 66.75  | 33.38  | 10101  | 137.33  | 103.00  | 68.66  | 34.33  | 
00110  | 166.70  | 100.02  | 66.68  | 33.34  | 10110  | 171.66  | 103.00  | 68.66  | 34.33  | 
00111  | 200.40  | 100.20  | 66.80  | 33.40  | 10111  | 206.00  | 103.00  | 68.67  | 34.33  | 
01000  | 160.00  | 100.00  | 66.67  | 33.33  | 11000  | 208.00  | 104.00  | 69.33  | 34.67  | 
01001  | 202.00  | 101.00  | 67.33  | 33.67  | 11001  | 210.00  | 105.00  | 70.00  | 35.00  | 
01010  | 210.00  | 105.00  | 70.00  | 35.00  | 11010  | 215.00  | 107.50  | 71.67  | 35.83  | 
01011  | 212.00  | 106.00  | 70.67  | 35.33  | 11011  | 220.00  | 110.00  | 73.33  | 36.67  | 
01100  | 270.00  | 101.25  | 67.50  | 33.75  | 11100  | 226.00  | 113.00  | 75.33  | 37.67  | 
01101  | 225.00  | 112.50  | 75.00  | 37.50  | 11101  | 230.00  | 115.00  | 76.67  | 38.33  | 
01110  | 266.67  | 100.00  | 66.67  | 33.33  | 11110  | 240.00  | 120.00  | 80.00  | 40.00  | 
01111  | 300.00  | 112.50  | 75.00  | 37.50  | 11111  | 250.00  | 125.00  | 83.33  | 41.67  | 
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USBCLK48  | C660  | 
  | 10PF(R)  | |
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SIOCLK48  | C670  | 
  | 10PF(R)  | |
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PCLKLAN  | C611  | 
  | 10PF(R)  | |
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PCLK1394  | C638  | 
  | 10PF(R)  | |
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PCLKH8  | C639  | 
  | 10PF(R)  | |
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PCLKPCM  | C649  | 
  | 10PF(R)  | |
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SIO_OSC  | C595  | 
  | 10PF(R)  | |
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PCLKMINI1  | C651  | 
  | 10PF(R)  | |
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PCLKSIO  | C610  | 
  | 10PF(R)  | |
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PCLKMINI2  | C650  | 
  | 10PF(R)  | |
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VCLK_NB  | C984  | 
  | 10PF  | |
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VCLK_SB  | C985  | 
  | 10PF  | |
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CPUCLK  | D04  | 
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C589  | 
  | 10PF(R)  | ||
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CPUCLK#  | C596  | 
  | 10PF(R)  | |
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HCLK  | C597  | 
  | 10PF(R)  | |
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HCLK#  | C615  | 
  | 10PF(R)  | |
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Diagrams
CLOCK GENERATOR B - 3