IDTCV115CPV Integrated Device Technology, Inc., IDTCV115CPV Datasheet

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IDTCV115CPV

Manufacturer Part Number
IDTCV115CPV
Description
PROGRAMMABLE FLEXPC CLOCK FOR P4 PROCESSOR
Manufacturer
Integrated Device Technology, Inc.
Datasheet
FEATURES:
• 4 PLL architecture
• Linear frequency programming
• Independent frequency programming and SSC control
• Band-gap circuit for differential output
• High power-noise rejection ratio
• 66MHz to 533MHz CPU frequency
• VCO frequency up to 1.1G
• Support index block read/write, single cycle index block read
• Programmable REF, 3V66, PCI, 48MHz I/O drive strength
• Programmable 3V66 and PCI Skew
• Available in SSOP package
FUNCTIONAL BLOCK DIAGRAM
OUTPUT TABLE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL TEMPERATURE RANGE
© 2004 Integrated Device Technology, Inc.
IDTCV119E
CLOCK GENERATOR FOR DESKTOP PC PLATFORMS
CPU (Pair)
3
3V66
3
V
S
TT_PWRGD
EL
24_48#
SDATA
FS[1:0]
SCLK
3V66/VCH
X1
X2
1
Watch Dog
Controller
Osc Amp
SM Bus
Control
XTAL
Timer
Logic
CLOCK GENERATOR FOR
DESKTOP PC PLATFORMS
PCI
6
Programming
Programming
PCIF
EasyN
EasyN
PLL1
PLL2
PLL3
PLL4
SSC
SSC
SSC
3
1
DESCRIPTION:
This chip incorporates four PLLs to allow independent generation of CPU, AGP/
PCI, SRC, and 48MHz clocks. The dedicated PLL for Serial ATA clock
provides high accuracy frequency. This device also implements Band-gap
referenced I
which can provide more robust system performance.
accuracy output clock. Each CPU, AGP/PCI, SRC clock has its own Spread
Spectrum selection.
KEY SPECIFICATION:
• CPU/SRC CLK cycle to cycle jitter < 125ps
• SATA CLK cycle to cycle jitter < 125ps
• PCI CLK cycle to cycle jitter < 250ps
• Static PLL frequency divide error as low as 36 ppm
REF
IDTCV119E is a 48 pin clock generation device for desktop PC platforms.
Static PLL frequency divide error can be as low as 36 ppm, providing high
2
Output Buffers
Output Buffers
Output Buffer
Output Buffer
SRC CLK
CPU CLK
3V66/PCI
48MHz
I
I
REF
REF
REF
to reduce the impact of V
48MHz
2
COMMERCIAL TEMPERATURE RANGE
24 - 48MHz
CPU[1:0]
CPU_ITP
REF 1.0
PCI[5:0], PCIF[2:0]
3V66[3:1]
SRC
48MHz[1:0]
RESET#
0
DD
variation on differential outputs,
JANUARY 2004
SRC (Pair)
1
IDTCV119E
DSC-6551/6
Reset#
1

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IDTCV115CPV Summary of contents

Page 1

... OUTPUT TABLE CPU (Pair) 3V66 3V66/VCH The IDT logo is a registered trademark of Integrated Device Technology, Inc. COMMERCIAL TEMPERATURE RANGE © 2004 Integrated Device Technology, Inc. CLOCK GENERATOR FOR DESKTOP PC PLATFORMS DESCRIPTION: IDTCV119E pin clock generation device for desktop PC platforms. This chip incorporates four PLLs to allow independent generation of CPU, AGP/ PCI, SRC, and 48MHz clocks ...

Page 2

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS PIN CONFIGURATION *FS1/REF0 1 *FS0/REF1 2 V _REF PCIF0 7 PCIF1 8 PCIF2 PCI DD_ ...

Page 3

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS SW FREQUENCY SELECTION BS[2:0] and WBS[2:0] are band selects. Whenever there is a band switch, the user has to issue a WD soft alarm (see Byte 32 and Byte 33). In CPU N/M ...

Page 4

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS PIN DESCRIPTION Pin Number Name 1 FS1/REF0 2 FS0/REF1 3 V _REF PCIF0 8 PCIF1 9 PCIF2 10 V _PCI ...

Page 5

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS PIN DESCRIPTION (CONT.) Pin Number Name 41 CPUC1 42 CPUT1 CPUC_ITP 45 CPUT_ITP 46 IREF DDA Type OUT Hosts 0.7V current mode differential clock ...

Page 6

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS SMBUS PROTOCOL INDEX BLOCK WRITE PROTOCOL Bit # of bits From 1 1 Master Start 2-9 8 Master D2h 10 1 Slave Acknowledge 11-18 8 Master Register offset byte (starting byte ...

Page 7

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS BYTE 0: DUMMY BYTE BYTE 1 Bit Output(s) Affected 7 Reserve 6 Reserve 5 SS_EN 4 Reserve 3 SRCT, SRCC 2 CPUT_ITP, CPUC_ITP 1 CPUT1, CPUC1 0 CPUT0, CPUC0 BYTE 2 Bit Output(s) ...

Page 8

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS BYTE 4 Bit Output(s) Affected 7 48MHz0 6 SRCFS0 5 Reserve 4 3V66_1 3 2 PCIF2 1 PCIF1 0 PCIF0 BYTE 5 Bit Output(s) Affected Description/Function 7 3V66_3/VCH 3V66_3/VCH mode select 6 Reserve ...

Page 9

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS BYTE 8 (READ BYTE COUNT REGISTER) Bit Output(s) Affected Description/Function 7 Reserve 6 BC6 5 BC5 4 BC4 3 BC3 2 BC2 1 BC1 0 BC0 NOTE: 1. Can be written by index ...

Page 10

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS BYTE 23 Bit Output(s) Affected 7 48MHz0 6 24_48MHz 5 REF1 4 REF0 3 Reserve 2 Reserve 1 Reserve 0 Reserve BYTE 24 Bit Output(s) Affected 7 WDHRB 6 WDSRB ...

Page 11

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS BYTE 26: CPU PLL CONTROL Bit Output(s) Affected 7 WDBS2 6 WDBS1 5 WDBS0 4 CSMC2 3 CSMC1 2 CSMC0 1 CPN9 0 CPN8 NOTE: 1. See SW FREQUENCY SELECTION table. BYTE 27: ...

Page 12

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS BYTE 29: AGP/PCI N PROGRAMMING In AGP/PCI N programming mode, AGP/PCI frequency = APN[9:0] * 0.223721591. APN0 has to be written for the APN[9: loaded into PLL N divider. Bit Output(s) ...

Page 13

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS BYTE 32: WD SOFT RESET TIMER WD Soft Alarm timer has to be shorter than WD Hard Alarm timer. WDE and WD Soft Alarm bits, Byte 33 bit 7 and bit 5, have ...

Page 14

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS CPU AND AGP CLOCK FREQUENCY SELECTION Band switch will take effect only when WD Soft Alarm time out is issued, which means there is a RESET issued. Even if the user changed BS[2:0], ...

Page 15

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS ELECTRICAL CHARACTERISTICS - INPUT / SUPPLY / COMMON OUTPUT PARAMETERS Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter V 3.3V Input HIGH ...

Page 16

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS ELECTRICAL CHARACTERISTICS - CPU AND SRC 0.7 CURRENT MODE DIFFERENTIAL PAIR (1) Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter Z Current ...

Page 17

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS ELECTRICAL CHARACTERISTICS - 3V66 Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter (1,2) ppm Long Accuracy V Output HIGH Voltage OH V ...

Page 18

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS ELECTRICAL CHARACTERISTICS, 48MHZ, USB AND V Following Conditions Apply Unless Otherwise Specified: Operating Condition 0°C to +70°C, Supply Voltage Symbol Parameter (1,2) ppm Long Accuracy (2) T Clock Period ...

Page 19

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS PD#, POWER DOWN PD asynchronous active low input used to shut off all clocks cleanly prior to clock power. When PD# is asserted low all clocks will be driven low before ...

Page 20

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS PD# DE-ASSERTION The time from the de-assertion of PD# or until power supply ramps to get stable clocks will be less than 1.8ms. If the drive mode control bit for PD# tristate is ...

Page 21

IDTCV119E CLOCK GENERATOR FOR DESKTOP PC PLATFORMS ORDERING INFORMATION XXX XX IDTCV Device Type Package CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 X Grade Blank Commercial Temperature Range (0°C to +70°C) PV Small Shrink Outline Package 119E Clock ...

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