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ICS9LPRS462 датащи(PDF) 19 Page - Renesas Technology Corp |
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ICS9LPRS462 датащи(HTML) 19 Page - Renesas Technology Corp |
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19 / 24 page ![]() ICS9LPRS462 Low Power Clock for ATI RS/RD600 series chipsets for AMD CPUs IDTTM/ICSTM Low Power Clock for ATI RS/RD600 series chipsets for AMD CPUs 1378A—04/07/08 19 SMBus Table: ATIG PLL Spread Spectrum Control Register Byte 18 Pin # Name Control Function Type 0 1 PWD Bit 7 0 Bit 6 - SSP14 RW X Bit 5 - SSP13 RW X Bit 4 - SSP12 RW X Bit 3 - SSP11 RW X Bit 2 - SSP10 RW X Bit 1 - SSP9 RW X Bit 0 - SSP8 RW X SMBus Table: CPU and ATIG Divider Ratio Programming Bits Select Register Byte 19 Pin # Name Control Function Type 0 1 PWD Bit 7 -CPU_Div3 RW X Bit 6 -CPU_Div2 RW X Bit 5 -CPU_Div1 RW X Bit 4 -CPU_Div0 RW X Bit 3 - ATIG_Div3 RW X Bit 2 - ATIG_Div2 RW X Bit 1 - ATIG_Div1 RW X Bit 0 - ATIG_Div0 RW X SMBus Table: HTT Divider Ratio Programming Bits Select Register Byte 20 Pin # Name Control Function Type 0 1 PWD Bit 7 0 Bit 6 0 Bit 5 0 Bit 4 0 Bit 3 -HTT_Div3 RW X Bit 2 -HTT_Div2 RW X Bit 1 -HTT_Div1 RW X Bit 0 -HTT_Div0 RW X HTT_Divider Ratio Programming Bits See Table 6: HTT Divider Ratios Reserved See Table 4: CPU Divider Ratios ATIG_Divider Ratio Programming Bits Reserved Reserved Reserved Spread Spectrum Programming b(14:8) These Spread Spectrum bits in Byte 19 and 20 will program the spread pecentage. It is recommended to use ICS Spread % table for spread programming. CPU_Divider Ratio Programming Bits Reserved See Table 5: ATIG Divider Ratios |
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