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CY28346ZC-2 参数 Datasheet PDF下载

CY28346ZC-2图片预览
型号: CY28346ZC-2
PDF下载: 下载PDF文件 查看货源
内容描述: 时钟合成器,差分CPU输出 [Clock Synthesizer with Differential CPU Outputs]
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: 19 页 / 169 K
品牌: SPECTRALINEAR [ SPECTRALINEAR INC ]
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CY28346-2  
Byte 3: PCIF Clock and 48M Control Register (all bits are read and write functional)  
Bit  
7
@Pup  
Name  
48M_DOT  
48M_USB  
PCIF2  
Description  
1
1
0
48M_DOT Output Control,1 = enabled, 0 = forced LOW  
48M_USB Output Control,1 = enabled, 0 = forced LOW  
6
5
PCI_STP#, control of PCIF2.  
0 = Free Running, 1 = Stopped when PCI_STP# is LOW  
4
3
0
0
PCIF1  
PCIF0  
PCI_STP#, control of PCIF1.  
0 = Free Running, 1 = Stopped when PCI_STP# is LOW  
PCI_STP#, control of PCIF0.  
0 = Free Running, 1 = Stopped when PCI_STP# is LOW  
2
1
0
1
1
1
PCIF2  
PCIF1  
PCIF0  
PCIF2 Output Control. 1=running, 0=forced LOW  
PCIF1 Output Control. 1= running, 0=forced LOW  
PCIF0 Output Control. 1= running, 0=forced LOW  
Byte 4: DRCG Control Register(all bits are read and write functional)  
Bit  
7
@Pup  
Name  
Description  
0
0
1
1
1
1
1
1
SS2 Spread Spectrum control bit (0 = down spread, 1 = center spread)  
Reserved  
6
5
3V66_0  
3V66_0 Output Enabled. 1 = enabled, 0 = disabled  
3V66_1/VCH Output Enable. 1 = enabled, 0 = disabled  
3V66_5 Output Enable. 1 = enabled, 0 = disabled  
66B2/3V66_4 Output Enabled. 1 = enabled, 0 = disabled  
66B1/3V66_3 Output Enabled. 1 = enabled, 0 = disabled  
66B0/3V66_2 Output Enabled. 1 = enabled, 0 = disabled  
4
3V66_1/VCH  
3V66_5  
3
2
66B2/3V66_4  
66B1/3V66_3  
66B0/3V66_2  
1
0
Byte 5: Clock Control Register (all bits are read and write functional)  
Bit  
7
@Pup  
Name  
Description  
SS1 Spread Spectrum control bit  
0
1
0
0
0
0
0
0
6
SS0 Spread Spectrum control bit  
5
66IN to 66M delay Control MSB  
4
66IN to 66M delay Control LSB  
3
Reserved  
2
48M_DOT edge rate control. When set to 1, the edge is slowed by 15%.  
Reserved  
1
0
USB edge rate control. When set to 1, the edge is slowed by 15%  
Byte 6: Silicon Signature Register[2] (all bits are read-only)  
Bit  
7
@Pup  
Name  
Description  
0
0
0
1
0
0
1
1
6
5
4
3
Vendor Code, 011 = IMI  
2
1
0
Note:  
2. When writing to this register the device will acknowledge the write operation, but the data itself will be ignored.  
Rev 1.0,November 20, 2006  
Page 5 of 19  
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