參數(shù)資料
型號(hào)： CY28349BOC
廠(chǎng)商： CYPRESS SEMICONDUCTOR CORP
元件分類(lèi)： 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(yè)數(shù)： 9/22頁(yè)
文件大小： 174K
代理商： CY28349BOC
CY28349B
Document #: 38-07454 Rev. *A
Page 9 of 22
Bit 0
–
WD_PRE_SCALER
0 = 150 ms
1 = 2.5 sec
0
Data Byte 9
Bit
Pin#
–
Name
Pin Description
Power On
Default
0
Bit 7
48MHz_DRV
48MHz and 24_48MHz clock output drive strength
0 = Normal
1 = High Drive
(Recommend to set to high drive if this output is being
used to drive both USB and SIO devices in Intel
Brookdale
- G platforms)
PCI clock output drive strength
0 = Normal
1 = High Drive
3V66 clock output drive strength
0 = Normal
1 = High Drive
This bit will enable the generation of a Reset pulse when
a Watchdog timer time-out occurs.
0 = Disabled
1 = Enabled
This bit will enable the generation of a Reset pulse after a
frequency change occurs.
0 = Disabled
1 = Enabled
Watchdog Timer Time-out Status bit
0 = No time-out occurs (Read); Ignore (Write)
1 = time-out occurred (Read); Clear WD_TO_STATUS
(Write)
0 = Stop and reload Watchdog Timer
1 = Enable Watchdog Timer. It will start counting down
after a frequency change occurs.
Note:
CY28349B will generate system reset, reload a
recovery frequency, and lock itself into a recovery
frequency mode after a Watchdog Timer time-out occurs.
Under recovery frequency mode, CY28349B will not
respond to any attempt to change output frequency via the
SMBus control bytes. System software can unlock
CY28349B from its recovery frequency mode by clearing
the WD_EN bit.
Reserved
Bit 6
–
PCI_DRV
0
Bit 5
–
3V66_DRV
0
Bit 4
–
RST_EN_WD
0
Bit 3
–
RST_EN_FC
0
Bit 2
–
WD_TO_STATUS
0
Bit 1
–
WD_EN
0
Bit 0
–
Reserved
0
Data Byte 8
(continued)
Bit
Pin#
Name
Pin Description
Power On
Default
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PDF描述
CY28349BOCT FTG for Intel Pentium 4 CPU and Chipsets
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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(chēng):Cypress Semiconductor 功能描述:FTG for Intel㈢ Pentium㈢ 4 CPU and Chipsets
CY28349BOXCT 制造商:CYPRESS 制造商全稱(chēng):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(chēng):SPECTRALINEAR 功能描述:FTG for Intel㈢ Pentium㈢ 4 CPU and Chipsets
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