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CY28405OXC 参数 Datasheet PDF下载

CY28405OXC图片预览
型号: CY28405OXC
PDF下载: 下载PDF文件 查看货源
内容描述: CK409兼容的时钟合成器 [CK409-Compliant Clock Synthesizer]
分类和应用: 晶体外围集成电路光电二极管时钟
文件页数/大小: 18 页 / 198 K
品牌: SPECTRALINEAR [ SPECTRALINEAR INC ]
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CY28405  
Byte 10: Control Register 10 (continued)  
Bit  
1
@Pup  
Name  
Description  
Description  
1
1
Reserved  
Reserved  
Reserved, Set = 1  
Reserved, Set = 1  
0
Byte 11: Control Register 11  
Bit  
7
@Pup  
Name  
0
0
Reserved  
Vendor Test Mode (always program to 0)  
6
Recovery_Frequency  
This bit allows selection of the frequency setting that the clock will be  
restored to once the system is rebooted  
0: Use Hardware settings  
1: Use Last SW table Programmed values  
5
4
0
0
Watchdog Time Stamp  
Reload  
Toenablethis function theregister bit mustfirst beset to0before toggling  
to “1”.  
0: Do not reload  
1: Reset timer but continue to count.  
WD_Alarm  
This bit is set to “1” when the Watchdog times out. It is reset to “0” when  
the system clears the WD_TIMER time stamp  
3
2
1
0
0
0
0
0
WD_TIMER3  
WD_TIMER2  
WD_TIMER1  
WD_TIMER0  
Watchdog timer time stamp selection:  
0000: Off  
0001: 2 second  
0010: 4 seconds  
0011: 6 seconds  
.
.
.
1110: 28seconds  
1111: 30seconds  
Byte 12: Control Register 12  
Bit  
7
@Pup  
Name  
CPU_FSEL_N8  
CPU_FSEL_N7  
CPU_FSEL_N6  
CPU_FSEL_N5  
CPU_FSEL_N4  
CPU_FSEL_N3  
CPU_FSEL_N2  
CPU_FSEL_N1  
Description  
0
0
0
0
0
0
0
0
If Prog_Freq_EN isset, the values programmed inCPU_FSEL_N[8:0] and  
CPU_FSEL_M[6:0] will be used to determine the CPU output frequency.  
The setting of FS_Override bit determines the frequency ratio for CPU and  
other output clocks. When it is cleared, the same frequency ratio stated in  
the Latched FS[E:A] register will be used. When it is set, the frequency  
ratio stated in the SEL[4:0] register will be used.  
6
5
4
3
2
1
0
Byte 13: Control Register 13  
Bit  
7
@Pup  
Name  
CPU_FSEL_N0  
CPU_FSEL_M6  
CPU_FSEL_M5  
CPU_FSEL_M4  
CPU_FSEL_M3  
CPU_FSEL_M2  
CPU_FSEL_M1  
CPU_FSEL_M0  
Description  
0
0
0
0
0
0
0
0
IfProg_Freq_ENisset, thevaluesprogrammedinCPU_FSEL_N[8:0]and  
CPU_FSEL_M[6:0] will be used to determine the CPU output frequency.  
The setting of FS_Override bit determines the frequency ratio for CPU and  
other output clocks. When it is cleared, the same frequency ratio stated in  
the Latched FS[E:A] register will be used. When it is set, the frequency  
ratio stated in the SEL[4:0] register will be used.  
6
5
4
3
2
1
0
Rev 1.0,November 20, 2006  
Page 9 of 18