Moteur de recherche de fiches techniques de composants électroniques |
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CY28372 Fiches technique(PDF) 5 Page - SpectraLinear Inc |
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CY28372 Fiches technique(HTML) 5 Page - SpectraLinear Inc |
5 / 17 page CY28372 Rev 1.0, November 20, 2006 Page 5 of 17 Device Configuration Map Data Bytes 0 to 3: Reserved for ZDB Registers 28 Acknowledge from slave 21:27 Slave address – 7 bits 29 Stop 28 Read = 1 29 Acknowledge from slave 30:37 Data byte from slave – 8 bits 38 Not Acknowledge 39 Stop Table 4. Byte Read and Byte Write Protocol (continued) Byte Write Protocol Byte Read Protocol Bit Description Bit Description Byte 4 Bit @Pup Name Description Bit 7 1 Frequency Select Register (FS3) [7..4] CPU ZCLK AGPPCI Bit2 = 0 0000 133.3 66.7 66.733.3 0001 133.3 66.7 50.033.3 0010 133.3 100.0 66.733.3 0011 133.3 100.0 50.033.3 0100 133.3 133.3 66.733.3 0101 133.3 133.3 50.033.3 0110 133.3 166.6 66.733.3 0111 133.3 166.6 55.533.3 1000 100.0 66.7 66.733.3 1001 100.0 66.7 50.033.3 1010 100.0 100.0 66.733.3 1011 100.0 100.0 50.033.3 1100 100.0 133.3 66.733.3 1101 100.0 133.3 50.033.3 1110 111.0 166.5 66.633.3 1111 111.0 166.5 55.533.3 Bit2 = 1 0000 114.5 95.4 63.631.8 0001 120.0 100.0 66.733.3 0010 133.3 83.3 66.733.3 0011 133.3 111.1 74.133.3 0100 133.3 133.3 83.333.3 0101 145.7 116.6 64.832.4 0110 150.0 100.0 66.733.3 0111 166.6 111.1 66.733.3 1000 111.1 133.3 66.733.3 1001 137.4 137.4 68.734.4 1010 144.9 144.9 64.432.2 1011 150.0 150.0 66.733.3 1100 155.1 124.1 68.934.5 1101 166.6 133.3 66.733.3 1110 180.1 135.1 67.633.8 1111 200.0 133.3 66.733.3 Bit 6 0 Frequency Select Register (FS2) Bit 5 0 Frequency Select Register (FS1) Bit 4 0 Frequency Select Register (FS0) Bit 3 0 FS_Override Frequency Selection Source: 0 = Select through hardware strapping, latched inputs 1 = Select through I2C Bit 2 0 Frequency Select Register Most significant bit of I2C Frequency Select Register Bit 1 1 Spread Spectrum Control 0 = Normal, 1 = Spread Spectrum enable Bit 0 0 Output Disable 0 = Normal, 1 = three-state all outputs Byte 5 Bit @Pup Name Description Bit 7 0 Reserved Reserved Bit 6 0 Reserved Reserved Bit 5 0 Reserved Reserved Bit 4 0 Reserved Reserved |
Numéro de pièce similaire - CY28372 |
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Description similaire - CY28372 |
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