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ICS94225 Datasheet(PDF) 6 Page - Integrated Circuit Systems

Part No. ICS94225
Description  AMD-K7TM System Clock Chip
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Maker  ICST [Integrated Circuit Systems]
Homepage  http://www.icst.com
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ICS94225 Datasheet(HTML) 6 Page - Integrated Circuit Systems

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6
ICS94225
0445B—08/01/03
Byte 13: Spread Sectrum Control Register
Byte 14:
Spread Sectrum Control Register
Note: Please utilize software utility provided by ICS
Application Engineering to configure spread
spectrum. Incorrect spread percentage may cause
system failure.
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Note: Please utilize software utility provided by ICS
Application Engineering to configure spread
spectrum. Incorrect spread percentage may cause
system failure.
Byte 15: Output Skew Control
Byte 16: Output Skew Control
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Byte 17: Output Rise/FallTime Select Register
Byte 18: Output Rise/Fall Time Select Register
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Notes:
1. PWD = Power on Default
2. The power on default for byte 13-20 depends on the harware (latch inputs FS[0:4]) or I
2C (Byte 0 bit [1:7]) setting.
Be sure to read back and re-write the values of these 8 registers when VCO frequency change is desired for the first
pass.
3. If Byte 8 bit 7 is driven to "1" meaning programming is intended, Byte 21-24 will lose their default power up value.
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