cy28rs680 SpectraLinear Inc, cy28rs680 Datasheet - Page 7

• Manufacturer Part Number: cy28rs680
• Description: Clock Generator For Ati Rs5xx/6xx Chipsets
• Manufacturer: SpectraLinear Inc

Rev 1.0, March 28, 2007
Byte 4: Spread Spectrum Control Register (continued)
Byte 5: System Configuration Register
Byte 6: Revision and Device ID
Byte 7: Vendor ID
Bit
Bit
Bit
Bit
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
@Pup
@Pup
@Pup
@Pup
0
0
0
0
0
0
1
0
0
0
1
1
0
0
1
0
0
0
1
0
0
0
0
0
0
1
0
0
0
ATIG_SS_OFF
SRC_SS_OFF
CLKREQA#
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
USB48
Name
Name
Name
Name
REF
Revision Code Bit 3
Revision Code Bit 2
Revision Code Bit 1
Revision Code Bit 0
Device ID Bit 3
Device ID Bit 2
Device ID Bit 1
Device ID Bit 0
ATIG_PLL (PLL2) Spread Spectrum Enable
0 = Spread Off, 1 = Spread On
SRC_PLL (PLL3) Spread Spectrum Enable
0 = Spread Off, 1 = Spread On
USB48 Output Drive Strength
0 = 1x, 1 = 2x
Reserved
REF Output Drive Strength
0 = 1x, 1 = 2x
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
CLKREQA# Controls SRC0
0 = Not controlled, 1 = Controlled
Reserved
Reserved
Reserved
Reserved
Vendor ID Bit 3
Vendor ID Bit 2
Vendor ID Bit 1
Vendor ID Bit 0
Description
Description
Description
Description
CY28RS680
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