CY28439ZXC Cypress Semiconductor Corporation., CY28439ZXC Datasheet
CY28439ZXC
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CY28439ZXC Summary of contents
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Clock Generator for Intel Features • Compliant to Intel CK410 • Supports Intel Prescott and Tejas CPU • Selectable CPU frequencies • Differential CPU clock pairs • 100-MHz differential SRC clocks (two selectable between Fixed and Overclocking) • 96-MHz ...
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Pin Description Pin No. Name Type 6,56 VDD_PCI PWR 3.3V power supply for outputs. 1,5 VSS_PCI GND 3 FS_E/PCI4 I,O, PU,SE 2,4,53,54, PCI O, SE 33-MHz clocks PCIF0 O,SE 33-MHz free running clock 8 FS_A/PCIF1 I/O,PD ...
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Frequency Select Pins (FS_[A:E]) Host clock frequency selection is achieved by applying the appropriate logic levels to FS_A, FS_B, FS_C, FS_D, and FS_E inputs prior to VTT_PWRGD# assertion (as seen by the clock synthesizer). Upon VTT_PWRGD# being sampled LOW by ...
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Table 1. Command Code Definition Bit Block read or block write operation Byte read or byte write operation (6:0) Byte offset for byte read or byte write operation. For block read or block write operations, ...
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Control Registers Byte 0: Control Register 0 Bit @Pup 7 1 RESERVED 6 1 SRC[T/C SRC[T/C SATA[T/ SRC[T/C SRC[T/C RESERVED 0 1 SRC[T/C]0 Byte 1: Control Register 1 Bit @Pup ...
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Byte 2: Control Register 2 (continued) Bit @Pup 0 1 Byte 3: Control Register 3 Bit @Pup 7 0 RESERVED SATA[T/ RESERVED 0 0 Byte 4: Control Register ...
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Byte 6: Control Register 6 Bit @Pup 7 0 TEST_SEL 6 0 TEST_MODE PCI, PCIF and SRC clock outputs except those set to free running Byte 7: Vendor ...
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Byte 9: Control Register 9 Bit @Pup 7 0 RESERVED FSEL_D 2 0 FSEL_C 1 0 FSEL_B 0 0 FSEL_A Byte 10: Control Register 10 Bit @Pup 7 0 Recovery_Frequency 6 0 ...
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Byte 12: Control Register 12 Bit @Pup 7 0 CPU_DAF_N8 6 0 CPU_DAF_M6 5 0 CPU_DAF_M5 4 0 CPU_DAF_M4 3 0 CPU_DAF_M3 2 0 CPU_DAF_M2 1 0 CPU_DAF_M1 0 0 CPU_DAF_M0 Byte 13: Control Register 13 Bit @Pup 7 0 ...
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Byte 15: Control Register 15 (continued) Bit @Pup 2 0 Recovery Recovery Recovery N0 Byte 16: Control Register 16 Bit @Pup SRC_FREQ_SEL 4 0 RESERVED 3 0 SRC_SATA ...
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Calculating Load Capacitors In addition to the standard external trim capacitors, trace capacitance and pin capacitance must also be considered to correctly calculate crystal loading. As mentioned previously, the capacitance on each side of the crystal is in series with ...
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FS_Override—This bit allows the CPU frequency to be selected from HW or FSEL settings. By default, this bit is not set and the CPU frequency is selected by HW. When this bit is set, the CPU frequency is selected by ...
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Manual Recovery When this recovery mode is selected, in the event of a Watchdog timeout, the N value as programmed by the user in the N recovery register, and the M value that is stored in the Recovery M register ...
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PD CPUT, 133MHz CPUC, 133MHz SRCT 100MHz SRCC 100MHz USB, 48MHz DOT96T DOT96C PCI, 33MHz REF Figure 5. Power-down Deassertion Timing Waveform FS_A, FS_B,FS_C VTT_PW RGD# PW RGD_VRM VDD Clock Gen Clock State State 0 Off Clock Outputs Off Clock ...
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Absolute Maximum Conditions Parameter Description V Core Supply Voltage DD V Analog Supply Voltage DD_A V Input Voltage IN T Temperature, Storage S T Temperature, Operating Ambient A T Temperature, Junction J Ø Dissipation, Junction to Case JC Ø Dissipation, ...
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AC Electrical Specifications Parameter Description Crystal T XIN Duty Cycle DC T XIN Period PERIOD XIN Rise and Fall Times XIN Cycle to Cycle Jitter CCJ L Long-term Accuracy ACC CPU at 0.7V (SSC ...
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AC Electrical Specifications Parameter Description T CPUT/C Cycle to Cycle Jitter CCJ L Long Term accuracy ACC CPUT and CPUC Rise and Fall Times Rise/Fall Matching RFM ∆T Rise Time Variation R ∆T Fall ...
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AC Electrical Specifications Parameter Description T Any PCI clock to Any PCI clock Skew SKEW T PCIF and PCI Cycle to Cycle Jitter CCJ DOT T DOT96T and DOT96C Duty Cycle DC T DOT96T and DOT96C Period PERIOD T DOT96T ...
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AC Electrical Specifications Parameter Description T Long Term jitter LTJ T Long Term jitter LTJ REF T REF Duty Cycle DC T REF Period PERIOD T REF Absolute Period PERIODAbs Edge Rate Rising edge rate Edge Rate Falling edge rate ...
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... Part Number Lead-free CY28439OXC 56-pin SSOP CY28439OXCT 56-pin SSOP – Tape and Reel CY28439ZXC 56-pin TSSOP CY28439ZXCT 56-pin TSSOP – Tape and Reel Document #: 38-07668 Rev. *D PRELIMINARY 3 3 Ω Ω Ω D iff tia Ω Ω ...
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... C Patent Rights to use these components defined by Philips. Intel and Pentium are registered trademarks of Intel Corporation. Dial-A-Frequency is a registered trademark of Cypress Semiconductor Corporation. All product and company names mentioned in this document are the trademarks of their respective holders. Document #: 38-07668 Rev. *D © ...
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Document History Page Document Title: CY28439 Clock Generator for Intel Document Number: 38-07668 REV. ECN NO. Issue Date ** 214024 See ECN *A 268615 See ECN *B 314353 See ECN *C 321473 See ECN *D 378834 See ECN Document #: ...