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參數(shù)資料
| 型號： | CY28349BOC |
| 廠商： | CYPRESS SEMICONDUCTOR CORP |
| 元件分類： | XO, clock |
| 英文描述： | FTG for Intel Pentium 4 CPU and Chipsets |
| 中文描述： | 200.4 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封裝： | SSOP-48 |
| 文件頁數(shù)： | 10/22頁 |
| 文件大?。?/td> | 174K |
| 代理商： | CY28349BOC |
CY28349B
Document #: 38-07454 Rev. *A
Page 10 of 22
Data Byte 10
Bit
Pin#
–
–
–
Name
Pin Description
Power On
Default
0
0
0
Bit 7
Bit 6
Bit 5
CPU_Skew2
CPU_Skew1
CPU_Skew0
CPU skew control
000 = Normal
001 =
–
150 ps
010 =
–
300 ps
011 =
–
450 ps
100 = +150 ps
101 = +300 ps
110 = +450 ps
111 = +600 ps
Fixed 3V66 and PCI output mode
0 = Disabled
1 = Enabled
When enabled, 3V66 and PCI output frequency will be
fixed at 64 MHz and 32 MHz respectively.
PCI skew control
00 = Normal
01 =
–
500 ps
10 = Reserved
11 = +500 ps
3V66 skew control
00 = Normal
01 =
–
150 ps
10 = +150 ps
11 = +300 ps
Bit 4
–
Fixed 3V66/PCI
0
Bit 3
Bit 2
–
–
PCI_Skew1
PCI_Skew0
0
0
Bit 1
Bit 0
–
–
3V66_Skew1
3V66_Skew0
0
0
Data Byte 11
Bit
Pin#
–
–
–
–
–
–
–
–
Name
Pin Description
Power On
Default
0
0
0
0
0
0
0
0
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
ROCV_FREQ_N7
ROCV_FREQ_N6
ROCV_FREQ_N5
ROCV_FREQ_N4
ROCV_FREQ_N3
ROCV_FREQ_N2
ROCV_FREQ_N1
ROCV_FREQ_N0
If ROCV_FREQ_SEL is set, the values programmed in
ROCV_FREQ_N[7:0] and ROCV_FREQ_M[6:0] will be
used to determine the recovery CPU output frequency
when a Watchdog Timer time-out occurs.
The setting of FS_Override bit determines the frequency
ratio for CPU and other output clocks. When FS_Override
bit is cleared, the same frequency ratio stated in the
Latched FS[4:0] register will be used. When it is set, the
frequency ratio stated in the SEL[4:0] register will be used.
Data Byte 12
Bit
Pin#
–
Name
Pin Description
Power On
Default
0
Bit 7
ROCV_FREQ_SEL
ROCV_FREQ_SEL determines the source of the recover
frequency when a Watchdog Timer time-out occurs. The
clock generator will automatically switch to the recovery
CPU frequency based on the selection on
ROCV_FREQ_SEL.
0 = From latched FS[4:0]
1 = From the settings of ROCV_FREQ_N[7:0] &
ROCV_FREQ_M[6:0]
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CY28349BOCT | FTG for Intel Pentium 4 CPU and Chipsets |
| CY28378 | FTG for Pentium 4 and Intel 845 Series Chipset |
| CY28378OC | FTG for Pentium 4 and Intel 845 Series Chipset |
| CY28378OCT | FTG for Pentium 4 and Intel 845 Series Chipset |
| CY28400 | 100-MHz Differential Buffer for PCI Express and SATA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY28349BOCT | 制造商:Rochester Electronics LLC 功能描述:FTG FOR INTEL 830M AND 845 CHIPSETS (CK-408) - Bulk |
| CY28349BOXC | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:FTG for Intel㈢ Pentium㈢ 4 CPU and Chipsets |
| CY28349BOXCT | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:FTG for Intel㈢ Pentium㈢ 4 CPU and Chipsets |
| CY28349OC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| CY28349OCT | 制造商:SPECTRALINEAR 制造商全稱:SPECTRALINEAR 功能描述:FTG for Intel㈢ Pentium㈢ 4 CPU and Chipsets |
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