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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ICS9LPRS480 датащи(PDF) 21 Page - Integrated Device Technology |
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ICS9LPRS480 датащи(HTML) 21 Page - Integrated Device Technology |
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21 / 25 page  21 Integrated Circuit Systems, Inc. ICS9LPRS480 1391D—02/02/09 SMBUS Table: SB_SRC Frequency Control Register Byte 17 Name Control Function Type 0 1 Default Bit 7 N Div10 RW X Bit 6 N Div9 RW X Bit 5 N Div8 RW X Bit 4 N Div7 RW X Bit 3 N Div6 RW X Bit 2 N Div5 RW X Bit 1 N Div4 RW X Bit 0 N Div3 RW X SMBUS Table: SB_SRC Spread Spectrum Control Register Byte 18 Name Control Function Type 0 1 Default Bit 7 SSP7 RW X Bit 6 SSP6 RW X Bit 5 SSP5 RW X Bit 4 SSP4 RW X Bit 3 SSP3 RW X Bit 2 SSP2 RW X Bit 1 SSP1 RW X Bit 0 SSP0 RW X SMBUS Table: SB_SRC Spread Spectrum Control Register Byte 19 Name Control Function Type 0 1 Default Bit 7 SSP15 RW X 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: SB_SRC Output Divider Control Register Byte 20 Name Control Function Type 0 1 Default Bit 7 SB_SRC NDiv0 LSB N Divider Programming RW X Bit 6 X Bit 5 X Bit 4 X Bit 3 SB_SRCDiv3 RW 0000:/2 ; 0100:/4 1000:/8 ; 1100:/16 X Bit 2 SB_SRCDiv2 RW 0001:/3 ; 0101:/6 1001:/12 ; 1101:/24 X Bit 1 SB_SRCDiv1 RW 0010:/5 ; 0110:/10 1010:/20 ; 1110:/40 X Bit 0 SB_SRCDiv0 RW 0011:/15 ; 0111:/18 1011:/36 ; 1111:/72 X SMBus Table: Device ID register Byte 21 Name Control Function Type 0 1 Default Bit 7 Device ID7 R 0 Bit 6 Device ID6 R 1 Bit 5 Device ID5 R 1 Bit 4 Device ID4 R 1 Bit 3 Device ID3 R 0 Bit 2 Device ID2 R 1 Bit 1 Device ID1 R 1 Bit 0 Device ID0 R 0 76 hex Reserved SRC Divider Ratio Programming Bits Spread Spectrum Programming bit(7:0) SB_SRC M/N programming. Bytes 18 and 19 set the the SB_SRC spread pecentages. Please contact ICS for the appropriate values. Device ID Reserved Reserved Spread Spectrum Programming bit(14:8) Bytes 18 and 19 set the the SB_SRC spread pecentages. Please contact ICS for the appropriate values. N Divider Programming Byte16 bit(7:0) and Byte15 bit(7:6) The decimal representation of M and N Divider in Byte 16 and 17 configure the SB_SRC VCO frequency. See M/N Caculation Tables for VCO frequency formulas. |
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