Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

C9870GT Datasheet(PDF) 4 Page - Cypress Semiconductor

Part # C9870GT
Description  High Performance Pentium짰 4 Clock Synthesizer
Download  25 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

C9870GT Datasheet(HTML) 4 Page - Cypress Semiconductor

  C9870GT Datasheet HTML 1Page - Cypress Semiconductor C9870GT Datasheet HTML 2Page - Cypress Semiconductor C9870GT Datasheet HTML 3Page - Cypress Semiconductor C9870GT Datasheet HTML 4Page - Cypress Semiconductor C9870GT Datasheet HTML 5Page - Cypress Semiconductor C9870GT Datasheet HTML 6Page - Cypress Semiconductor C9870GT Datasheet HTML 7Page - Cypress Semiconductor C9870GT Datasheet HTML 8Page - Cypress Semiconductor C9870GT Datasheet HTML 9Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 4 / 25 page
background image
C9870G
High Performance Pentium® 4 Clock Synthesizer
Cypress Semiconductor Corporation
http://www.cypress.com
Document#: 38-07108 Rev. *A
12/26/2002
Page 4 of 25
Approved Product
Serial Control Registers (Cont.)
Byte 0: CPU Clock Register
Bit
@Pup
Pin#
Description
7
0
-
Spread Spectrum Enable
0 = Spread Off, 1 = Spread On
This is a Read and Write control bit.
6
0
-
Reserved
5
0
35
3V66_1/VCH frequency Select
0 = 66M selected, 1 = 48M selected
This is a Read and Write control bit.
4
Pin 53
44,45,48,49,
51,52
CPU_STP#. Reflects the current value of the external CPU_STP# (pin 53) This bit is Read Only.
3
Pin 34
10,11,12,13,
16,17,18
Reflects the current value of the internal PCI_STP# function when read. Internally PCI_STP# is a
logical AND function of the internal SMBus register bit and the external PCI_STP# pin.
2
Pin 40
-
Frequency Select Bit 2. Reflects the value of SEL2 (pin 40). This bit is Read Only.
1
Pin 55
-
Frequency Select Bit 1. Reflects the value of SEL1 (pin 55). This bit is Read Only.
0
Pin 54
-
Frequency Select Bit 0. Reflects the value of SEL0 (pin 54). This bit is Read Only.
Byte 1: CPU Clock Register
Bit
@Pup
Pin#
Description
7
Pin 43
-
MULT0 (Pin 43) Value. This bit is Read Only.
6
0
-
Reserved
5
0
44,45
Controls CPU2 functionality when CPU_STP# is asserted LOW
1 = Free Running, 0 = Stopped LOW with CPU_STP# asserted LOW
This is a Read and Write control bit.
4
0
48,49
Controls CPU1 functionality when CPU_STP# is asserted LOW
1 = Free Running, 0 = Stopped LOW with CPU_STP# asserted LOW
This is a Read and Write control bit.
3
0
51,52
Controls CPU0 functionality when CPU_STP# is asserted LOW
1 = Free Running, 0 = Stopped LOW with CPU_STP# asserted LOW
This is a Read and Write control bit.
2
1
44,45
CPU2 Output Control, 1 = enabled, 0 = disable HIGH and CPU/2 disables LOW
This is a Read and Write control bit.
1
1
48,49
CPU1 Output Control, 1 = enabled, 0 = disable HIGH and CPU/1 disables LOW
This is a Read and Write control bit.
0
1
51,52
CPU0 Output Control, 1 = enabled, 0 = disable HIGH and CPU/0 disables LOW
This is a Read and Write control bit.
Byte 2: PCI Clock Control Register
(all bits are read and write functional)
Bit
@Pup
Pin#
Description
7
0
-
Reserved
6
1
18
PCI6 Output Control
1 = enabled, 0 = forced LOW
5
1
17
PCI5 Output Control
1 = enabled, 0 = forced LOW
4
1
16
PCI4 Output Control
1 = enabled, 0 = forced LOW
3
1
13
PCI3 Output Control
1 = enabled, 0 = forced LOW
2
1
12
PCI2 Output Control
1 = enabled, 0 = forced LOW
1
1
11
PCI1 Output Control
1 = enabled, 0 = forced LOW
0
1
10
PCI0 Output Control
1 = enabled, 0 = forced LOW
Byte 3: PCI_F Clock and 48M Control Register
(all bits are read and write functional)
Bit
@Pup
Pin#
Description
7
1
38
48MDOT Output Control
1 = enabled, 0 = forced LOW
6
1
39
48MUSB Output Control
1 = enabled, 0 = forced LOW
5
0
7
PCI_STP#, control of PCI_F2.
0 = Free Running, 1 = Stopped when
PCI_STP# is LOW
4
0
6
PCI_STP#, control of PCI_F1.
0 = Free Running, 1 = Stopped when
PCI_STP# is LOW
3
0
5
PCI_STP#, control of PCI_F0.
0 = Free Running, 1 = Stopped when
PCI_STP# is LOW
2
1
7
PCI_F2 Output Control
1=running, 0=forced LOW
1
1
6
PCI_F1 Output Control
1= running, 0=forced LOW
0
1
5
PCI_F0 Output Control
1= running, 0=forced LOW


Similar Part No. - C9870GT

ManufacturerPart #DatasheetDescription
logo
Kemet Corporation
C987U472JZSDAA7317 KEMET-C987U472JZSDAA7317 Datasheet
1Mb / 16P
   Safety Standard Recognized, 900 Series, Encapsulated, AC Type, X1 440 VAC/Y2 300 VAC (Industrial Grade)
C987U472JZSDBA7317 KEMET-C987U472JZSDBA7317 Datasheet
1Mb / 16P
   Safety Standard Recognized, 900 Series, Encapsulated, AC Type, X1 440 VAC/Y2 300 VAC (Industrial Grade)
C987U472JZSDCA7317 KEMET-C987U472JZSDCA7317 Datasheet
1Mb / 16P
   Safety Standard Recognized, 900 Series, Encapsulated, AC Type, X1 440 VAC/Y2 300 VAC (Industrial Grade)
C987U472JZSDDA7317 KEMET-C987U472JZSDDA7317 Datasheet
1Mb / 16P
   Safety Standard Recognized, 900 Series, Encapsulated, AC Type, X1 440 VAC/Y2 300 VAC (Industrial Grade)
C987U472JZVDAA7317 KEMET-C987U472JZVDAA7317 Datasheet
1Mb / 16P
   Safety Standard Recognized, 900 Series, Encapsulated, AC Type, X1 440 VAC/Y2 300 VAC (Industrial Grade)
More results

Similar Description - C9870GT

ManufacturerPart #DatasheetDescription
logo
SpectraLinear Inc
CY28342 SPECTRALINEAR-CY28342 Datasheet
258Kb / 21P
   High-performance SiS645/650 Pentium짰 4-Clock Synthesizer
logo
Cypress Semiconductor
C9827H CYPRESS-C9827H Datasheet
171Kb / 25P
   High Performance Pentium 4 Clock Synthesizer
logo
SpectraLinear Inc
CY2254A SPECTRALINEAR-CY2254A Datasheet
111Kb / 7P
   Pentium짰 Processor Compatible Clock Synthesizer/Driver
logo
Cypress Semiconductor
CY28342 CYPRESS-CY28342 Datasheet
178Kb / 22P
   High-performance SiS645/650 Pentium 4 Clock Synthesizer
logo
Maxim Integrated Produc...
MAX3674 MAXIM-MAX3674 Datasheet
314Kb / 19P
   High-Performance, Dual-Output, Network Clock Synthesizer
Rev 0; 12/07
logo
Cypress Semiconductor
CY28381 CYPRESS-CY28381 Datasheet
143Kb / 19P
   High-Performance SiS645DX/648DX/650/651 Intel Pentium 4 Clock Synthesizer
logo
Texas Instruments
CDC7005 TI-CDC7005 Datasheet
397Kb / 29P
[Old version datasheet]   3.3-V HIGH PERFORMANCE CLOCK SYNTHESIZER AND JITTER CLEANER
logo
Motorola, Inc
MC12429 MOTOROLA-MC12429 Datasheet
123Kb / 12P
   HIGH FREQUENCY CLOCK SYNTHESIZER
logo
Exar Corporation
XR81101 EXAR-XR81101 Datasheet
208Kb / 8P
   Universal Clock - High Frequency LVCMOS Clock Synthesizer
XR81102 EXAR-XR81102 Datasheet
176Kb / 8P
   Universal Clock - High Frequency LVPECL Clock Synthesizer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com