Schematic Diagrams
VT8237A-2 B - 17
B.Schematic Diagrams
VT8237A-2
Sheet 16 of 40
VT8237A-2
R600 4.7K_06
R348 10K_06
R357 *1K_06
3.3V
IDE_SDCS3#
R632 1K_06
951129
GPIOA
C698
.1U_50V_06
Power Up Strapping for VT8237A
F0123-03
IDE_PDD0
IDE_PDD7
R603 0_06
PEXMESCI# ->GPI18 951101
2.5VSATA
PM_CLKRUN#
IDE_SDD7
SATATXP0
IDE_SDD5
IDE_SIORDY
C456
6.8P_50V_06
C434
1U_10V_06
0/1:Enable/disable100Mhz VLink clock(Reserved)
ADD R286 951101
IDE_PDD11
C487 22P_50V_06
3.3VS
SIO_OSC 2
GPIOB
GPIOD
R598 4.7K_06
R575 4.7K_06
RN29
1K_8P4R_06
1
2
3
4 5
6
7
8
IDE_PDD8
IDE_SDDREQ
AZ_SDOUT
PM_STPCPU#
R347 0_06
951122
SATARXP0
Z1611
AZ_SDIN0
C695
.1U_50V_06
3.3V
IDE_PDCS1#18
25MHZXI_S
GPI0
IDE_SDD6
SMI#
2.5VS
C446
1U_10V_06
R565 4.7K_06
0/1:Enable/disable CPU FREQ strapping
3.3VS
WAKE 7
SATARXN0
IDE_PDD4
SDIN3
GPIOD
R276 0_06
SERI RQ 19,20,23
IDE_PDD[0..15]18
GPO1 27
SMBDT2
Z1618
R629 1M_06
3.3V
3.3VS
INT_IRQ
GPIOA
+
C362
*330U_6.3V_D
AZ_RST# 27
8237_SUSB#
Z1603
GPIOB
RN28
2.2K_8P4R_06
1
2
3
45
6
7
8
VCCRTC
SEEDI17
IDE_PDD9
AZ_BITCLK
GPO1
R351 0_06
3.3VS
SUSB#
R262 10K_06
SB_PWROK
AZ_SDOUT
R625 10K_06
AZ_SDIN0 27
AZ_SDOUT
IDE_PDA118
IDE_SDD1
GPO1
8237TEST
Z1617
R264 4.7K_06
951117
IDE_PDA218
PWR_BTN#
IDE_SDD8
SMB_SBCLK
LAN PHY RESET:
RING
GPIOC
R596 22_06
R363 *2.2K_06
IDE_PDDACK#
C447
.1U_50V_06
R311 0_06
IDE_SDCS1#
GPIO D 0:AGTL+ pullup Enable
2.5VS
R627 4.7K_06
2.5VS->2.5V 951101
CPUMISS
GPI04
PME#
Z1604
C381
4.7U_10V_08
IDE_PDCS3#18
Z1615
AZ_SYNC
BGA6B
VT8237A-BGA541
AA22
Y24
AA26
AA25
AB26
AC26
AC23
AD25
AD26
AC24
AC25
AB24
AB23
AA24
Y26
AA23
W23
V25
W24
Y23
V24
W26
Y25
Y22
V22
V23
T1
U3
V2
U1
V3
T2
U2
T3
AD24
AE26
AC20
AB20
AC21
AE18
AF18
AD18
AD19
AF19
AE20
AF20
AD20
AE21
AF21
AD21
AD22
AF22
AD17
AD23
AF23
AE23
AF17
AF25
AF26
AF24
AC22
AE24
AD2
Y2
AA1
W4
AC1
V4
Y3
AB3
AA2
AD3
AF2
AB1
AC4
AB2
AC2
AA3
AE2
AE5
AF5
AC6
AD5
AB7
AC7
AD6
AA4
AB4
AB5
AB6
J9
J10
J11
AF14
L13
L14
AE9
AF1
L15
K9
L9
J12
L18
M9
AB14
AC14
AD12
AD13
AD14
AD15
AD16
AE12
AE14
AE16
AF12
L16
M11
AC11
AC17
AB13
AC13
AE15
AF15
AB15
AC15
AF16
L11
L12
T4
U4
AD9
AF8
AB8
AC3
AD1
AE1
Y4
AF9
Y1
AE3
AE13
AF13
AC10
AB10
AE11
AF11
AD11
AE10
AF10
AC19
AB21
AB11
AB17
W12
W13
W14
W15
W16
M18
N9
N18
P9
P18
R9
R18
T9
T18
U9
U18
V9
V10
V11
V12
V13
V14
V15
V16
V17
V18
AC16
AC12
AB16
AB12
M12
M13
M14
M15
M16
N11
N12
N13
N14
N15
N16
F6
F7
J5
K5
P5
R5
W5
V5
K18
Y5
PDD00
PDD01
PDD02
PDD03
PDD04
PDD05
PDD06
PDD07
PDD08
PDD09
PDD10
PDD11
PDD12
PDD13
PDD14
PDD15
PDA0/PDA0*
PDA1/PDA1*
PDA2/PDA2*
PDDRQ
PDDACK/PDDACK*,PDDACK
PDIOR/PHDMARDY/PHSTROBE
PDIOW/PSTOP
PDRDY/PDDMARDY/PDSTROBE
PDCS1/PDCS1*,PDCS1
PDCS3/PDCS3*
ACBITCLK,AZBITCLK
ACSDIN0,AZSDIN0
ACSDIN1,AZSDIN1
ACSDIN2,AZSDIN2/GPI20/GPO20/PCS0
ACSDIN3,AZSDIN3/GPI21/GPO21/PCS1/SLPBTN
ACSYNC,AZSYNC/ACSYNC*
ACSDOUT,AZSDOUT/ACSDOUT*
ACRST,AZRST
IRQ14
IRQ15
SDD00
SDD01
SDD02
SDD03
SDD04
SDD05
SDD06
SDD07
SDD08
SDD09
SDD10
SDD11
SDD12
SDD13
SDD14
SDD15
SDDRQ
SDDACK
SDIOR/SHDMARDY/SHSTROBE
SDIOW/SSTOP
SDRDY/SDDMARDY/SDSTROBE
SDCS1
SDCS3
SDA0
SDA1
SDA2
PWRBTN
RING/GPI03
EXTSMI/GPI02
PME
LID/GPI04
BATLOW/GPI05
SUSST1/GPO03
SUSCLK/GPO04
SUSA/GPO02
SUSB
SUSC
SMBALRT
SMBCK1
SMBDT1
GPI01,GPI01/THRMTRIP
GPO00
GPI00
Strap_VD1*,GPIOA*/PCREQA*
Strap_VD0*,GPIOC*/PCGNTA*
Strap_VD3*,GPIOD*/PCGNTB*
Strap_VD2*,GPIOB*/PCREQB*
PCKRUN
CPUSTP/GPO05
PCISTP/PCISTP*/GPO06
VSUS33-1
VSUS33-2
VSUS33-3
VSUS33-4
VCC25-1
VCC25-2
VCC25-3
GNDATS11
GND
GND
TEST
PWROK
GND
VCC25-5
VCC25-6
VCC25-4
VCC25-7
VCC25-8
GNDATS0
GNDATS1
GNDATS2
GNDATS3
GNDATS4
GNDATS5
GNDATS6
GNDATS7
GNDATS8
GNDATS9
GNDATS10
GND
GND
VCCAS2
VCCAS1
STXP1
STXN1
SRXP2
SRXN2
STXP2
STXN2
GNDATS12
GND
GND
VSUS25-1
VSUS25-2
SERIRQ
SPKR/SPKR*
OSC
SMBCK2/GPI27/GPO27
SMBDT2/GPI26/GPO26
INTRUDER/GPI16
AOLGPI/THRM/GPI18
TPO
CPUMISS/GPI17
GPO01
SRXP1
SRXN1
VCCAO
GNDAO
VCCA33,NC
GNDA33,NC
SREXT
SXO
SXI
SVREF,NC
SCOMPP,NC
VCCAS4
VCCAS3
VDDATS-1
VDDATS-2
VDDATS-3
VDDATS-4
VDDATS-5
VCC25-9
VCC25-10
VCC25-11
VCC25-12
VCC25-13
VCC25-14
VCC25-15
VCC25-16
VCC25-17
VCC25-18
VCC25-19
VCC25-20
VCC25-21
VCC25-22
VCC25-23
VCC25-24
VCC25-25
VCC25-26
VCC25-27
VCC25-28
VCC25-29
GNDAS1
GNDAS2
GNDAS3
GNDAS4
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
NC, WAKE
1:Vlink Compensation(Manual setting)
3.3V
R604 4.7K_06
R633 *2.2K_06
AZ_SDIN0
R316 0_06
INT_IRQ15
IDE_PDIOW#
RN9
1K_8P4R_06
1
2
3
45
6
7
8
R355 *0_06
FB14
HCB3216KF-800T30_12
R361 *0_04
R552 4.7K_06
FB13
HCB2012KF-121T30_08
PEXMESCI#
Z1610
SMB_SBDATA
C488 22P_50V_06
R544 10K_06
SATARXN018
GPI0
IDE_PDD1
IDE_SDD9
CPUMISS
IDE_SDD14
R293 *0_06
R362 1K_06
0\1:P4/V4 Bus \ C3 Bus
3.3V
PM_SUS_STAT#
VDDA0
SIO_OSC
GPO0
R354 *1K_06
IDE_SDA0
GPO04
SDIN2
IDE_SDD13
ADD 360OHM 951101
PM_CLKRUN# 20,23
SATATXN0
Z1609
R595 22_06
R296 5.6K_06
Z1616
R535 4.7K_06
C457
4.7U_10V_08
R631 4.7K_06
0:V4 support(Disable)
2.5VS
PM_STPPCI# 2
SMI# 23
WAKE
C452
6.8P_50V_06
PM_STPCPU# 2
GPIOC
Z1614
R358 4.7K_06
U35
74AHC1G08GW
2
1
4
3
5
2.5VS
IDE_SDD4
GPI04
PWR_BTN# 23
AZ_SDIN1 27
PM_BATLOW#
SIDEVREF
C449
.1U_50V_06
3.3V
VDDA33
IDE_SDD12
IDE_PDCS1#
R350 2.2K_06
IDE_PDA1
WAKE
R324 *2.2K_06
IDE_PDA018
IDE_PDD13
Z1612
+
C389
470U_4V_D
R586 2.2K_06
3.3VS
AZ_SYNC 27
R285
360_1%_06
5VS
3.3V
3.3VS
SUSB# 15,20,23,27,33,34
INT_IRQ
R628 1M_06
0/1:Enable/disable LPC FWH command
IDE_PDD2
TPO
IDE_PDD[0..15]
R308 6.19K_1%_06
R353 *0_06
R601 4.7K_06
R323 1K_06
IDE_PDDREQ18
AC_SPKR 27
25MHZXO_S
3.3VS
R623 *1K_06
IDE_PDDACK#18
PM_STPCPU#
SREXT
C432
4.7U_10V_08
IDE_PDA1
SMB_SBCLK
IDE_PDA2
R619 4.7K_06
AZ_SDIN1
Z1605
8237_SU SB#
R366 4.7K_06
FB21
HCB2012KF-121T30_08
R626
10K_06
IDE_PDIOW#18
IDE_PDD7
RING
IDE_PDD10
Z1602
IDE_PIORDY
X3
25MHz
1 2
IDE_SDD3
IDE_PDD15
F0123-03
25MHZXO_S
R583
100_08
U34
74AH C1G08GW
2
1
4
3
5
PM_STPPCI#
AZ_RST#
GPO0
SMB_ALERT#
IDE_SDDACK#
SB_PWROK 7
IDE_PDD12
R360 0_04
R656 10K_06
RSMRST#17,23
IDE_SDD2
IDE_SIORDY
1:DESKTOP MODE
IDE_SDD11
R624 4.7K_06
GPIO B 0:IOQ Depth 8 Level
GPO0 11
8237_PWROK
AZ_RST#
AZ_BITCLK 27
Z1607
C708
*10U_10V_08
SREXT
SMI#
IDE_SDIOW#
IDE_PDDREQ
SM_INTRUDER#
R368 *2.2K_06
3.3VS
AZ_SDOUT 27
SERIRQ
AC_SPKR
SMB_SBDATA
SATATXN018
IDE_PDA2
SMBDT2
VDDA33
C373
1U_10V_06
AZ_SYNC
Z1601
SERIRQ
R597 4.7K_06
F010496
PM_S U S_STAT#
IDE_PDD14
PM_STPPCI#
R269 0_06
VT8237R plus => 4.7K
VT8237A => 6.12K
AP339A
0:MOBILE MODE
R365 10K_06
GPO04 15
VDDA0
R381 4.7K_06
R618 22_06
SATA50COMP
25MHZXI_S
SATATXP018
SMB_ALERT#
SUSC# 23
SMB_SBDATA 2,9,10,11
8237TEST
ACSDO
C490
4.7U_10V_08
2.5VS
SATARXP018
SMBCK2
RN20
2.2K_8P4R_06
1
2
3
45
6
7
8
C443
.1U_50V_06
IDE_PDIOR#18
R554 4.7K_06
GPI04
PEXMESCI#
VKCOMP for Vlink at 4X mode
GPIO C,A 1,1:Auto Mode
DEL SUSCLK
R602 C960125
IDE_PDD3
R286 0_06
R574 4.7K_06
2.5VS
PM_SUS_STAT# 7
PEXMESCI# 7
SUSC#
SB_PWROK
Z1606
ACSYNC
2.5VS
3.3VS
TPO
IDE_SDDREQ
C440
.1U_50V_06
IDE_PDA0
IDE_SDD15
SM_INTRUDER#
R622 4.7K_06
IDE_PDA0
PM_BATLOW#
0/1:Enable/disable Auto Reboot
IDE_IRQ18
SWI# 23
IDE_SDA1
AZ_SDIN1
R364 4.7K_06
1:V4 support
PME# 19,23,26
IDE_SDD7
2.5VSATA
R621 10K_06
0/1:Disable/Enable LAN shadow EEPROM
F0123-03
2.5V
AC_SPKR
IDE_SDD0
SUSA#
IDE_SDD10
1:VKCOMP for Vlink at 4X mode 0.9V
IDE_SDIOR#
IDE_PDIOR#
IDE_PDCS3#
IDE_SDA2
Z1613
SCI# 23
IDE_PDD5
8237_PWROK
INT_IRQ15
IDE_PDD6
IDE_PDCS3#
Z1608
R581 10K_06
C696
.1U_50V_06
C362?C389???,???C362??
SMB_SBCLK 2,9,10,11
R545 4.7K_06
R599 10K_06
SDIN3
AZ_SDIN0
C493 22P_50V_06
R620 4.7K_06
1:V4-lite support
RSMRST#17,23
SMBCK2
PM_CLKRUN#
951117
IDE_PIORDY18
AZ_SYNC
SUSA#
SDIN2
C492 22P_50V_06
0:V4-lite support(Disable)