PLL202-151 PhaseLink (PLL), PLL202-151 Datasheet

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PLL202-151

Manufacturer Part Number
PLL202-151
Description
Ali, Via, Sis, Intel 440BX Chipset FTGS , I2C Programmable: Skew / SST / Frequency / Drive
Manufacturer
PhaseLink (PLL)
Datasheet
FEATURES
BLOCK DIAGRAM
47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991
CPU_STOP#
PCI_STOP#
MULT_SEL1
FS(0:4)
SDATA
XOUT
SCLK
Supports VIA P4M/KM266, ALI M1671 and SIS
645/650 Chipsets.
Programmable Spread Spectrum Modulation
from 0.1% to 1.5% with minim u m step size of
Selectable Spread Spectrum modulation profile.
AccuSkew
tuning channel with maximum 5% precision
over the variation of temperature, process and
voltage. Finest step starts with 80ps.
AccuDrive
strength with minimum 6mA per step. Selectable
double strength drive for REF1, AGP0, PCI5.
Programmable VCO frequency with one variable
Programmable VCO Output Divider.
On-chip 20 ohm series resistor for REF, PCI,
USB, ZCLK and AGP clock outputs.
6 differential DDR pairs or 12 SDR clocks.
8 PCI, 1 USB, 2 REF a nd 3 AGP clock outputs.
1 programmable 24MHz or 48MHz for SIO.
CPU frequency slow down to -30% if overheats.
Support 2 -wire I2C serial bus interface.
Built-in programmable watchdog timer
Available in 300 mil 56 pin SSOP.
XIN
PD#
0.012%. Selectable either center or down.
Logic
XTAL
I2C
PLL1
PLL2
OSC
SST
T M
T M ,
Programmable Clock Generator for VIA, ALI and SIS DDR SYSTEM
Programmable Output Buffer drive
Programmable Precision skew
Control
Logic
Watch
Dog
VDD_CPU_CS (2.5V)
VDD_APIC (2.5V)
VDD
REF
CPUT (0:1)
CPUC (0:1)
VDDCPU (3.3V)
CPUT (0:1)
CPUC (0:1)
APIC (0:1)
VDD
AGP (0:2)
PCI (1:8)
PCI_F
VDD
48Mhz
24_48Mhz
WDRESET#
PIN CONFIGURAT ION
N o t e :
POWER GROUP
KEY SPECIFICATIONS
AGP0_ZCLK/SEL_VIA*
PCI0/SEL_SDR_DDR*
VDD, VSS: REF, XIN, XOUT, PLL ANALOG
VDDPCI, VSSPCI: PCI
VDDAGP, VSSAGP: AGP
VDD48M, VSS48M: 48MHz
VDDC, VSSC: CPUT/C
VDDCS, VSSCS: CPUCS_T/C
VDDD, VSSD: DDR(C:T 0:5)/SD(0:11)
CPU Output Skew < 250ps.
VIA Mode: CPU to AGP Skew < 250ps.
Non-Via: CPU to AGP(ZCLK): 1 ~4 ns (typ 2ns)
CPU to DDR/SDRAM Skew < 250ps.
PCI to PCI Skew < 500ps.
CPU to PCI : Min = 1.0ns, Typ = 2.0ns,
Max = 4.0ns.
AGP1/SEL_P4_K7 *
^
*
SD#//WDRESET# ^
: Pull up (100k
: B i -directional latched at power-up
PCI1/MULTSEL*^
24_48MHz/FS2*
PRELIMINARY
48MHz/FS3*
REF0/FS0*^
PCI_F/FS1*
VSSAGP
VDDAGP
VSS48M
VDD48M
VDDPCI
VSSPCI
SDATA
XOUT
AGP2
VDD1
VSS1
SCLK
PCI4
PCI5
IREF
PCI2
PCI3
VSS
XIN
v
v
v
v
^
^
) ,
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
26
27
28
v :
Pull down (100k
PLL202-151
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
Rev 11/05/01 Page 1
REF1/VTT_PWRGD#
VDD
CPUT/CPUOD_T
CPUC/CPUOD_C
CPU_CS_C
CPU_CS_T
VSSCS
DDRC0/SDRAM1
DDRC1/SDRAM3
VDDD
VSSD
DDRC2/SDRAM5
DDRC3/SDRAM7
VDDD
VSSD
DDRC4/SDRAM9
VSSC
VDDCPU_3_3
VDDCPU_2_5
FBOUT
BUF_IN
DDRT0/SDRAM0
DDRT1/SDRAM2
DDRT2/SDRAM4
DDRT3/SDRAM6
DDRT4/SDRAM8
DDRT5/SDRAM10
DDRC5/SDRAM11
, #: A c t i v e l o w ,

Related parts for PLL202-151

PLL202-151 Summary of contents

Page 1

... AGP0_ZCLK/SEL_VIA* PCI0/SEL_SDR_DDR POWER GROUP VDD REF VDD_CPU_CS (2.5V) CPUT (0:1) CPUC (0:1) VDDCPU (3.3V) CPUT (0:1) CPUC (0:1) VDD_APIC (2.5V) APIC (0:1) VDD AGP (0:2) KEY SPECIFICATIONS PCI (1:8) PCI_F VDD 48Mhz 24_48Mhz WDRESET# PLL202-151 PRELIMINARY 1 56 REF0/FS0 VSS 3 54 XIN 4 53 XOUT 5 52 VDDAGP AGP1/SEL_P4_K7 * ...

Page 2

... This pin latches the MULTSEL value at power-up. After power-up, this pin acts as PCI2 clock output. MULTSEL is used to selec t the current multiplier for the CPU outputs. This pin has a 20 ohm on-chip series resistor. If MULTSEL=0, IOH=4XIREF. If MULTSEL=1, IOH=6XIREF PLL202-151 PRELIMINARY Description Rev 11/05/01 Page 2 ...

Page 3

... VCO divider when SD#= VIA mode, 3.3V CMOS input for SDRAM mode; 2.5V input for DDR mode. In ALI_SIS mode, this input should be connected to ground. O Feedback clock for chipset. Output voltage depends on VDDD. PLL202-151 PRELIMINARY Description Rev 11/05/01 Page 3 ...

Page 4

... CPUCS_[T,C] clocks. P 3.3v power supply for CPU[T,C]/CPUOD_[T,C] clocks SEL_SDR_DDR=0 supply DDR at 2.5V, If SELSDR_DDR=1 supply SDRAM at 3.3V P Ground. Reference R (Rr VDD/(3*Rr 221 ; 1% Iref = 5.0mA Rr = 475 ; 1% Iref = 2.32 mA PLL202-151 PRELIMINARY Description Output Current 4*IREF 1. 6*IREF 0. Rev 11/05/01 Page ...

Page 5

... N/A 0 111 1 120 0 144 1 156 0 66.6 1 100 0 200 1 133.3 PLL202-151 PRELIMINARY AGP PCI VCO 66.7 33.3 400 66.7 33.3 400 66.7 33.3 400 66.7 33.3 400 66.7 33.3 400 66.7 33.3 800 62.5 31.3 500 83.3 41.7 500 62.5 31.3 500 67.3 33.6 403 420 66.7 33.3 400 66.7 33.3 800 66 ...

Page 6

... Byte 1 Address Byte count Data Byte M Address Data Byte M Address Data Data Byte M Byte M+1 P Stop PLL202-151 PRELIMINARY Data Data -------- Byte N Data Data -------- Byte M+N-1 Data Data Byte 2 ...

Page 7

... DDRC5/SDRAM11 (1=Active 0=Inactive) PCI_F (1=Active 0=Inactive) DDRT5/SDRAM10 (1=Active 0=Inactive) DDRC4/SDRAM9 (1=Active 0=Inactive) MULTSEL (IREF multiple) MODE Selection. 1= selection through hardware input pin 38 0= selection through I2C control by Byte2.bit[0,7] DDRT4/SDRAM8 (1=Active 0=Inactive) CPUT/CPU0D_T, CPUC/CPU0D_C (1=Active 0=Inactive) CPU_CS_T, CPU_CS_C (1=Active 0=Inactive) PLL202-151 Rev 11/05/01 Page 7 ...

Page 8

... Inverted Power-up latched FS3 value (Read only) Inverted Power-up latched FS2 value (Read only) Inverted Power-up latched FS1 value (Read only) Inverted Power-up latched FS0 value (Read only) 48Mhz (1=Active 0=Inactive) 24_48Mhz (1=Active 0=Inactive) PCI5 double drive strength selection. 1=normal, 0=2X REF0 (1=Active 0=Inactive) PLL202-151 Rev 11/05/01 Page 8 ...

Page 9

... Linear programming sign bit ( 0 is “ ” “ ” ) Linear programming magnitude bit 6 (MSB) Linear programming magnitude bit 5 Linear programming magnitude bit 4 Linear programming magnitude bit 3 Linear programming magnitude bit 2 Linear programming magnitude bit 1 Linear programming magnitude bit 0 (LSB) PLL202-151 Rev 11/05/01 Page 9 ...

Page 10

... Dog falls back to fall back frequency setting in Byte 9. 0 Watchdog Time Interval Bit 5 (MSB) 0 Watchdog Time Interval Bit 4 0 Watchdog Time Interval Bit 3 0 Watchdog Time Interval Bit 2 0 Watchdog Time Interval Bit 1 0 Watchdog Time Interval Bit 0 (LSB) PLL202-151 PRELIMINARY Description Description Description Rev 11/05/01 Page 10 ...

Page 11

... Enable VCO-N Counter programming (byte23~24 programming through byte 23~24 0= programming through ROM selection 1 Spread Spectrum mode selection. 1=Center Spread, 0= Down Spread Center Spread: SST<6:0> = Modulation rate * Down Spread: SST<6:0> = Modulation rate * N / PLL202-151 PRELIMINARY Description Description Rev 11/05/01 Page 11 ...

Page 12

... AccuSkew Setting II ( 160ps/step) +640ps +480ps Setting applies to the +320ps following outputs: +160ps 1. AGP0_ZCLK Default 2. AGP1, AGP2 -160ps 3. All PCI -320ps -480ps PLL202-151 Skew Setting III (125ps/step) +875ps +750ps +625ps Setting applies to the following outputs: +500ps +375ps 1.DDR/SDRAM (Via mode) +250ps +125ps Default ...

Page 13

... Bit <1> 1 160ps per step and Bit <0> 1 Bit <2> 0 These three bits will adjust timing of all PCI signals either Bit <1> 1 positive or negative delay up to +640ps or –480ps with 160ps per step and Bit <0> 1 PLL202-151 Description 5% accuracy. 5% accuracy. 5% accuracy. 5% accuracy. 5% accuracy. 5% accuracy. Rev 11/05/01 Page 13 ...

Page 14

... These three bits will program drive strength for DDR[0:2]C, Bit <1> 1 DDR[0:2]T output clocks (see Table 2). Bit <0> 1 Bit <2> 0 These three bits will program drive strength for DDR[3:5]C, Bit <1> 1 DDR[3:5]T output clocks (see Table 2). Bit <0> 1 PLL202-151 Setting III +50% +38% Setting applies to the +25% following outputs +13% 1. PCIF,PCI[0:1] Default 2. PCI[2:5] 3. REF[0:1] -13% -25% ...

Page 15

... Table 2). Bit <0> 1 Bit <2> 0 These three bits will program drive strength for REF[0:1] Bit <1> 1 output clocks. (see Table 2). Bit <2> 1 Bit <2> 0 These three bits will program drive strength for FBOUT Bit <1> 1 output clock. (see Table 2). Bit <0> 1 PLL202-151 Description Rev 11/05/01 Page 15 ...

Page 16

... These three bits will program all output frequency for Bit <1> 1 DDR/SDRAM clocks (see Table 3). Bit <0> 1 Bit <2> 1 These three bits will program output frequency for Bit <1> 1 AGP0_ZCLK clock (see Table 3). Bit <0> 1 PLL202-151 PRELIMINARY PCI-Divider Default ROM Selection /24 /20 /16 1. PCI /14 /12 /10 /8 Description ...

Page 17

... AGP2 clocks (see Table 3). Bit <0> 1 Bit <2> 1 These three bits will program output frequency for all Bit <1> 1 PCI clocks (see Table 3). Bit <0> N<15:0>= VCO*1024/14.31818 <15:0>= VCO*1024/14.31818 PLL202-151 PRELIMINARY Description Description Description Rev 11/05/01 Page 17 ...

Page 18

... Programmable Clock Generator for VIA, ALI and SIS DDR SYSTEM PROGRAMMING OF CPU FREQUENCY Using Smart- Byte: To simplify traditional loop counter setting, the PLL202-151 device incorporates SMART -BYTE ™ technology with a single byte programming via I2C. Detail of PLL202-151's dual mode frequency programming method is described below: 1. ROM-table Frequency Programming: The pre-defined 32 frequencies found in Frequency table can be accessed through 4 external jumpers ...

Page 19

... WDT will generate a 500ms low watchdog reset pulse to provoke a system reset. After system restarts, the PLL202-151 will start from predefined Fall-back Frequency (the value of I2C Byte9, bits(5:3)). If system for any reason fails again at Fall-back Frequency, the internal hardware will then generate a watchdog reset to restart the system from the value of external hardware jumper setting to ensure a safe recovery ...

Page 20

... Setting 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 I2C Register Loading: WD-TIMER, WD-ENABLE SUCCESS = Target CPU SUCCESS = Fall-Back CPU System Restart @ PLL202-151 PRELIMINARY START Fall-Back, M, Wait For System Response FAIL - After specified WD -Timer Expired System Restart @ ...

Page 21

... DDL pF@66MHz, 2. pF@133MHz, 2.5V 5% DDL crossing of target Freq 3. Logic Inputs IN C XIN & XOUT pins INX PLL202-151 PRELIMINARY MAX 0 0 0 ...

Page 22

... PCI, AGP Assumes full supply CPU,PCI_F,PCI, voltage reached within APIC,AGP,REF, 1ms from power-up. Short 48MHz,24MHz cycle exist prior to frequency stabilization. CPU V =3.3V(2.5V PCI,AGP V =3. REF,48MHz,24MHz V =3. PLL202-151 PRELIMINARY = TYP. MAX 175 500 500 250 ...

Page 23

... MIN (0.203 - 0.406) 56PIN SSOP 47745 Fremont Blvd., Fremont, CA 94538, USA Tel: (510) 492-0990 Fax: (510) 492-0991 PART NUMBER PLL202-151 X C PLL202-151 PRELIMINARY 0.025 0.635 0.087 - 0.094 (2.210 - 2.388) 0.095 - 0.110 (2.413 - 2.794) TEMPERATURATURE C=COMMERCIAL M=MILITARY I=INDUSTRAL ...

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