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CY28551LFXC Datasheet(PDF) 9 Page - Silicon Laboratories |
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CY28551LFXC Datasheet(HTML) 9 Page - Silicon Laboratories |
9 / 29 page CY28551 ....................... Document #: 001-05675 Rev. D Page 9 of 28 1 0 R Vendor ID Bit 1 Vendor ID Bit 1 0 0 R Vendor ID Bit 0 Vendor ID Bit 0 Byte 8: Control Register 8 Bit @Pup Type Name Description 7 0 R/W CR1_PCIEX7 PCIEX[T/C75 CLKREQ#A Control 1 = PCIEX [T/C]5 stoppable by CLKREQ#B pin 0 = Free running 6 0 R/W CR1_PCIEX6 PCIEX[T/C]6 CLKREQ#A Control 1 = PCIEX [T/C]4 stoppable by CLKREQ#B pin 0 = Free running 5 0 R/W CR1_PCIEX5 PCIEX[T/C]5 CLKREQ#B Control 1 = PCIEX [T/C]5 stoppable by CLKREQ#B pin 0 = Free running 4 0 R/W CR1_PCIEX4 PCIEX[T/C]4 CLKREQ#B Control 1 = PCIEX [T/C]4 stoppable by CLKREQ#B pin 0 = Free running 3 0 R/W RESERVED RESERVED, Set = 0 2 0 R/W RESERVED RESERVED, Set = 0 1 0 R/W RESERVED RESERVED, Set = 0 0 0 R/W RESERVED RESERVED, Set = 0 Byte 7: Vendor ID (continued) Bit @Pup Type Name Description Byte 9: Control Register 9 Bit @Pup Type Name Description 7 0 R/W DF3_N8 The DF3_N[8:0] configures CPU frequency for Dynamic Frequency. DOC[1:2] =11 6 0 R/W DF2_N8 The DF2_N[8:0] configures CPU frequency for Dynamic Frequency. DOC[1:2] =10 5 0 R/W DF1_N8 The DF1_N[8:0] configures CPU frequency for Dynamic Frequency. DOC[1:2] =01 4 0 R/W RESERVED RESERVED, Set = 0 3 0 R/W RESERVED RESERVED, Set = 0 2 1 R/W SMSW_Bypass Smooth switch Bypass 0 = Activate SMSW block 1 = Bypass and deactivate SMSW block. 1 0 R/W SMSW_SEL Smooth switch select 0 = Select CPU_PLL 1 = Select SRC_PLL 0 0 R/W RESERVED RESERVED, Set = 0 |
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