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5 4 3 2 1
First International Computer,Inc
D D
Portable Computer Group HW Department
Board name : Mother Board Schematic 1. Schematic Page Description :
Project : VA250 2. PCI & IRQ & DMA Description :
C
Version : 0.4 3. Block Diagram : C
4. Net name Description :
Current Date : Dec 05, 2006
5. Board Stack up Description :
6. Schematic modify Item and History :
7. power on & off & S3 Sequence :
8. Layout Guideline :
9. switch setting
B B
Manager Sign by: Avery Lee
Drawing by : Richard Wang
Total confirm by:
A
LAN Circuit check by: A
First International Computer, Inc.
Audio Circuit check by: Title
2FL.,NO.300,Yang Guang St.,NeiHu
114 TAIPEI, TAIWAN ,ROC
(886-2)8751-8751
VA250 < Yonah + VN896 + VT8237A >
Size Document Number Rev
C <> 0.4
Date: Sunday, December 10, 2006 Sheet 1 of 56
5 4 3 2 1
8 7 6 5 4 3 2 1
1. Schematic Page Description :
VA250 Schematic Ver : 0.3
D
1. Title 23. VT8237A (1/3) 45. 1.5VDDA/S , 1.8/2.5VDDM/A D
2. Schematic Page Description 24. VT8237A (2/3) 46. VCCP/1.5VDDM
3. Block Diagram 25. VT8237A (3/3) 47. DDR II Power
4. ANNOTATIONS 26. Power Good & Fan Controller 48. 3VDDA / 5VDDA
5. Schematic Modify 27. Blank 49. POW-ON Controller
6. Timing Diagram 28. RTC and MODEM Conn. 50. ADIN / Battery CNN
7. DDR Layout Guideline 29. MINI PCI Conn. 51. Charge Circuit
8. Yonah processor (1/2) 30. VT6103L PHY 52. Inverter Controller
9. Yonah processor (2/2) 31. USB CNN 53. On board Audio & Audio CNN
10. POWER (CPU CORE) 32. HDD / CD-ROM CNN 54. Unused Switch transfer board
11. Thermal 33. LPC PMU08 55. Update List
12. Clock Generator 34. LPC KBC M38827 56. Unused Audio Board
13. Clock Buffer 35. INT KBC / GP Connector
C C
14. VN896 (1/4) 36. ENI component
15. VN896 (2/4) 37. DIP/Lid/Power Switch & LED
16. VN896 (3/4) 38. Firm Ware Hub
17. VN896 (4/4) 39. Reset Circuit
18. DDR SO-DIMM1 40. SCREW
19. DDR SO-DIMM0 41. VT1708A Audio Codec
20. VT1634AL LVDS Transmitter 42. G1432+1410 Audio Amplifier
21. LCD Connector 43. H.P. Out
22. CRT Connector 44. PWR Block
B
2. PCI & IRQ & DMA Description : B
IRQ Channel Desciption DMA Channel Device
IRQ0 System timer DMA0 FIR (disable by default) (MODEM / LAN)
IDSEL CHIP
IRQ1 Keyboard DMA1 ECP
AD17 Mini PCI(Wireless LAN) IRQ2 (Casacde) DMA2 FLOPPY DISK
IRQ3 LAN / MODEM DMA3 AUDIO
IRQ4 Serial Port DMA4 (Cascade)
IRQ5 AUDIO / VGA / USB DMA5 Unused
IRQ6 FLOPPY DISK DMA6 Unused
IRQ7 LPT DMA7 Unused
IRQ8 RTC
PCIINT CHIP IRQ9 ACPI
IRQ10 FIR (Disable by default) (MODEM/LAN)
IRQA NB
IRQ11 Cardbus
IRQB MiniPCI
IRQ12 PS/2 mouse
IRQC MiniPCI
IRQ13 FPU
IRQD IRQH PCI-E
IRQ14 HDD
IRQ15 CDROM
A BUSMASTER A
REQ CHIP
REQ0 / GNT0
REQ1 / GNT1 First International Computer, Inc.
REQ2 / GNT2 Mini PCI(Wireless LAN) 2FL.,NO.300,Yang Guang St.,NeiHu
114 TAIPEI, TAIWAN ,ROC
REQ3 / GNT3 (886-2)8751-8751
REQ4 / GNT4 Title
VA250 < Yonah + VN896 + VT8237A >
Size Document Number Rev
C <> 0.4
Date: Sunday, December 10, 2006 Sheet 2 of 56
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
3. Block Diagram : CLK ICS953009AFLF
P12
CLK Buffer
P13
D Thermal Intel CPU
CORE
D
Sensor Yonah Celeron Power Good
P10 P26
GMT G796 P11 533/667MHz
Processor CPU LED and LID/DIP/Power SW
VCCP
P8,9 P37
P46
Host Bus Power Block
P44
DDR2 400 /533
/667 INTERFACE MAIN SW
VIA P18,P19 P49
VN896
CRT P22 952 HSBGA Mem Bus
C
VT1634AL P14~P17 C
LCD P21 LVDS Tx
P20
Hub Interface
Audio
AMP
LAN Phy IDE BUS CDROM Azalia P42
MII BUS P32
RJ-45 P30 VT6103L VT8237A CODEC
P30 S-ATA HDD VT1708A HEADPHONE
P41
ACIN 539 BGA P32
USB 2.0
P50 Mic IN
P23~P25 MDC CNN
P28 P43
3VDDA/5VDDA PMU3V/5V USB(2),3P31 USB0,1 P31 HDA-Link
P48
B B
3VDDS/5VDDS 32Bit PCI BUS
P48
LPC BUS
3VDDM/5VDDM
P48
1.8VDDS/DDM
P47 FLASH ROM LPC
Mini PCI K/B CTRL
DDR 0.9VDDM ( F/W Hub) PMU08
P47 LPC M3885X
VCCP/1.5VDDM P29 P34
4M P38
P33
P46
Over Voltage
P48 Protect
P? INT K/B P35 GP P35
Battery FAN CNN
charger P51
P11
A
Battery Select A
P51
BAT CON
RTC P28
P50 First International Computer, Inc.
2FL.,NO.300,Yang Guang St.,NeiHu
114 TAIPEI, TAIWAN ,ROC
Battery Voltage (886-2)8751-8751
sense
P33 RESET Title
P39 VA250 < Yonah + VN896 + VT8237A >
Size Document Number Rev
C <> 0.4
Date: Sunday, December 10, 2006 Sheet 3 of 56
8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1
4. Net name Description : 5.Board Stack up Description
Voltage Rails PCB Layers
DCIN Primary DC system power supply Layer 1 Component Side, Microstrip signal Layer
D
PMU5V 5.0V always on power rail by LATCH or ACIN Layer 2 Ground Plane D
PMU3V 3.3V always on power rail by LATCH or ACIN
5VDDA 5.0V always on power rail by DCON or PSUSC0 Layer 3 Stripline Layer(AGTL,CLOCK,DDR)
3VDDA 3.3V always on power rail by DCON or PSUSC0 Layer 4 Stripline Layer(Analog,LVDS,other)
3VDDS 3.3V power rail
5VDDS 5.0V power rail Layer 5 Power Plane
3VDDM 3.3V switched power rail Layer 6 Solder Side,Microstrip signal Layer
5VDDM 5.0V switched power rail
Vcore_CPU Core Voltage for CPU
VCCP 1.05V for AGTL+ Termination Voltage
1.8VDDM 1.8V for CPU PLL Voltage
DDR_0.9VDDM 0.9V DDR Termination Voltage
1.5VDDM 1.5V switched power rail
1.5VDDS 1.5V power rail
1.5VDDA 1.5V always on power rail
2.5VDDS 2.5V power rail for DDR
C C
Part Naming Conventions
C = Capacitor
CN = Connector
D = Diode
F = Fuse
L = Inductor
Q = Transistor
R = Resistor
B
RP = Resistor Pack B
U = ICs
Y = Crystal and Osc
Net Name Suffix
0 = Active Low signal
Signal Conditioning
_D_ = Damped (by a resistor)
_Q_ = Isolated (by a Q-switch)
_L_ = Filtered (by an inductor or bead)
A A
First International Computer, Inc.
2FL.,NO.300,Yang Guang St.,NeiHu
114 TAIPEI, TAIWAN ,ROC
(886-2)8751-8751
Title
VA250 < Yonah + VN896 + VT8237A >
Size Document Number Rev
C <> 0.4
Date: Sunday, December 10, 2006 Sheet 4 of 56
8 7 6 5 4 3 2 1
5 4 3 2 1
6.Schematic modify Item and History :
D D
C C
B B
A A
First International Computer, Inc.
2FL.,NO.300,Yang Guang St.,NeiHu
114 TAIPEI, TAIWAN ,ROC
(886-2)875 1-8751
Title
VA250 < Yonah + VN896 + VT8237A >
Size Document Number Rev
C <> 0.4
Date: Sunday, December 10, 2006 Sheet 5 of 56
5 4 3 2 1
5 4 3 2 1
7. power on & off & S3 Sequence :
D Power On Sequencing Timing Diagram D
VID
VR_ON Tsft_star_vcc
Vboot Vid
Vcc-core Tboot
Tboot-vid-tr
CPU_UP Tcpu_up
Vccp
Vccp_UP Tvccp_up
Vccgmch
GMCHPWRGD Tgmch_pwrgd
CLK_ENABLE#
IMVP4_PWRGD Tcpu_pwrgd
C C
BATTERY ONLY POWER ON TIMING S3 SUSPEND AND RESUME TIMING
POWSW0
POWSW0
PMU5V/PMU3V
PMU5V/PMU3V H
DCON DCON H
VDDA H
VDDA
PM_RSMRST0 H To ICH4_M
MAINSW0_ICH To ICH4
PM_SLP_S30 From ICH4_M
To ICH4
PM_RSTRST0 PM_SLP_S40/S50 H From ICH4_M
From ICH4
PSUSC0 H From ASIC_B0
PM_SLP_S30/S40/S50
SUSTAT_B0 From ASIC_B0
From ASIC_B0
PSUSC0
From ASIC_B0
VDDS H
SUSTAT_B0
B
VDDM B
VDDM,VDDS
PM_PWROK 1.5VDDS AND
DDR_PWRGD
PM_PWROK SYS_PWROK
VRON_VCCP
SYS_PWROK
VCCP,1.2VDDM
VRON_VCCP
VCORE_ON
VCCP/1.2VDDM
VR_ON
VCORE_ON
VR_ON VCORE_CPU
VCORE_CPU
CK408_PWRGD0
CK408_PWRGD0 To clock Generator
To clock generator PM_VGATE ToICH4 and ODEM
To ODEM and ICH4
PM_VGATE CPU_PWRGOOD From ICH4 to CPU
From ICH4 to CPU
CPU_PWRGD PCI_RST0 To ODEM/other
PCI_RST0 PCI device
To ODEM/other PCI device AGTL+_CPURST0 From ODEM to CPU
AGTL+_CPURST0
A From ODEM to CPU A
First International Computer, Inc.
2FL.,NO.300,Yang Guang St.,NeiHu
114 TAIPEI, TAIWAN ,ROC
(886-2)8751-8751
Title
VA250 < Yonah + VN896 + VT8237A >
Size Document Number Rev
C <> 0.4
Date: Sunday, December 10, 2006 Sheet 6 of 56
5 4 3 2 1
5 4 3 2 1
8. Layout Guideline :
Montara-GM DDR Layout Guidelines
Note that all length matching formulas are based on GMCH die-pad to SO-DIMM pin total length CLOCKS LENGTH TRACE / SPACE NOTES
1. Differentials pairs with
HCLKCPU[1..0] the same length
D
DDR Signal Groups Length Matching Formulas 5 / 20 mils (within 10 mil) D
HCLKNB[1..0] 2" ~ 8 " (5 mil space 2.CPU & NB trace
Group Signal Name Signal Group Minimum Length Maximum Length between + & - ) mismatch within
HCLKITP[1..0] 450 mil
Clocks SCK[5:0] Control to Clock Clock - 1.0" Clock + 0.5"
SCK#[5:0] * 66MCLK_ICH &
Command to Clock Clock - 1.0" Clock + 2.0" 66MCLK_ICH AGPCLK_GMCH
Data SDQ[71:0] 4.5" ~ 9.0 " AGPCLK_ATI
SDQS[8:0] CPC to Clock Clock - 1.0" Clock + 0.5" 66MCLK_GMCH 5 / 20 mils Length mismatch
SDM[8:0] within 100 mils
Strobe to Clock Clock - 1.0" Clock + 0.5" AGPCLK_ATI MAX : 8.5"
Control SCKE[3:0]
SCS#[3:0] Data to Strobe Strobe - 25 mils Strobe + 25 mils
PCLKICH 1.Making PCI length with
Command SMA[12:6,3:0] minimum various
SBA[1:0] PCLKCB
SRAS# 2.Max skew = 1ns
SCAS# PCLK1394
SWE#
PCLKUSB20 4.5"~9.0" 5 / 20 mils
CPC SMA[5,4,2,1]
SMAB[5,4,2,1] PCLKOP
Feedback RCVENOUT# PCLKFWH
RCVENIN#
PCLKSIO
PCLKLAN
Clock Signals Topologies and Routing Guidelines 14MCLK_SIO
14MCLK_ICH 4.5"~9.0" 5 / 10 mils
SO-DIMM PADS 7 mil trace, 4 mil pair space 14MCLK_AC97
Clock length tolerenve within the pair : +/- 10 mil
Clock to Clock Length Matching : +/- 25 mils
Minimum Pair to Pair Spacing : 20 mils 48MCLK_ICH
C GMCH Minimum Spacing to other Signals : 20 mils 3.5" ~ 12.5" 5 / 20 mils C
Pin 48MCLK_CB
P1 L1
Min:0.5"
Package Length Max:5.0"
Range
SDQ/SDM to SDQS Mapping
Data Signals Topologies and Routing Guidelines
Signal Mask Relative To Mismatching
SDQ[7..0] SDM[0] SDQS[0] +/- 25 mil
Minimun Spacing to Trace Width Ratio, SDQ/SDM : 2 to 1
SDQS : 3 to1 SDQ[15..8] SDM[1] SDQS[1] +/- 25 mil
L1 L2 L3 L4 Minimum Spacing to other Signals : 20 mils
GMCH SDQ[23..16] SDM[2] SDQS[2] +/- 25 mil
Pin Trace Length L1 : Min 0.5" , Max 3.75"
56 ohm 5% L2 : Max 0.75" SDQ[31..24] SDM[3] SDQS[3] +/- 25 mil
P1 L3 : Min 0.25" , Max 1.0"
L4 : Max 1.0 " SDQ[39..32] SDM[4] SDQS[4] +/- 25 mil
Package Length
Range Length Matching : SDQS to SCK/SCK# SDQ[56..40] SDM[5] SDQS[5] +/- 25 mil
SDQS , SODIMM0 P1+L1+L2
SDQS , SODIMM1 P1+L1+L2+L3 SDQ[55..48] SDM[6] SDQS[6] +/- 25 mil
Min : Clock - 1.0" , Max : Clock + 0.5"
SO-DIMM0 SO-DIMM1 SDQ/SDM to SDQS : +/- 25 mils SDQ[63..56] SDM[7] SDQS[7] +/- 25 mil
PADS PADS SDQ[71..64] SDM[8] SDQS[8] +/- 25 mil
B B
Control Signals Topologies and Routing Guidelines
Trace spacing to trace width ratio : 2 to 1
L1 L2 Minimum Spacing to other Signals : 20 mils
GMCH Trace Length L1 : Min 0.5" , Max 5.5"
Pin L2 : Max 2.0"
56 ohm 5%
P1 Length Matching : CTRL(P1+L1) to SCK/SCK#
Min : Clock - 1.0" , Max : Clock + 0.5"
Package Length
Range
CPC Signals Topologies and Routing Guidelines
SO-DIMM0,1 PADS Trace spacing to trace width ratio : 2 to 1
Minimum Spacing to other Signals : 20 mils
Trace Length L1 : Min 0.5" , Max 5.5"
L2 : Max 2.0"
L1 L2
GMCH Length Matching : CPC(P1+L1) to SCK/SCK#
Min : Clock - 1.0" , Max : Clock + 0.5"
Command Signals Topologies and Routing Guidelines Pin 56 ohm 5%
P1
Package Length
Trace spacing to trace width ratio : 2 to 1 Range
L1 L3 L4 Minimum Spacing to other Signals : 20 mils
GMCH Trace Length L1 : Min 0.5" , Max 4.0"
Pin L2 : Max 1.0" SO-DIMM0,1 PADS
56 ohm 5% L3 : Max 2.0"
P1 L2+L3 : Max 3.0"
10 ohm 5% L4 : Max 1.0"
A Package Length Length Matching : CMD to SCK/SCK# A
Range CMD , SODIMM0 P1+L1+L2
CMD , SODIMM1 P1+L1+L3
Min : Clock - 1.0" , Max : Clock + 2.0"
L2
SO-DIMM1
PADS First International Computer, Inc.
2FL.,NO.300,Yang Guang St.,NeiHu
114 TAIPEI, TAIWAN ,ROC
(886-2)8751-8751
Title
SO-DIMM0
VA250 < Yonah + VN896 + VT8237A >
Size Document Number Rev
PADS C <> 0.4
Date: Sunday, December 10, 2006 Sheet 7 of 56
5 4 3 2 1
A B C D E
U59A Topology : FERR#
AGTL+_H A03 J4 H1
A[3]# ADS# AGTL+_A DS0 <14>
AGTL+_H A04 L4 E2 VCCP L1 L2 Rtt Transmission Line
A[4]# BNR# AGTL+_BNR 0 <14>
AGTL+_H A05 M3 G5 CPU ICH7m
A[5]# BPRI# AGTL+_BPR I0 <14>
AGTL+_H A06 K5 0.5" - 12" 0" - 3.0" 56 +/-5% Micro-strip
AGTL+_H A07 A[6]#
M1
A[7]# DEFER#
H5 AGTL+_DEFER 0 <14> Rtt
ADDR GROUP 0
AGTL+_H A08 N2 F21 L1 L2 0.5" - 12" 0" - 3.0" 56 +/-5% Strip-line
A[8]# DRDY# AGTL+_DRDY0 <14>
AGTL+_H A09 J1 E1
A[9]# DBSY# AGTL+_DBSY0 <14>
AGTL+_H A010 N3
AGTL+_H A011 A[10]# AGTL+_ BR00
P5 F1 AGTL+_ BR00 <14>
A[11]# BR0#
CONTROL