Table of Contents
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SB VT8237A-2 IDE, ISA & SATA
R_PPHD[0..15]
R_PPHD[0..15] ( 21)
SDD[0..15]
SDD[0..15] (27)
R_PPHD0
AA22
PDD0
R_PPHD1
Y24
PDD1
R_PPHD2
AA26
PDD2
R_PPHD3
AA25
R_PPHD4
PDD3
AB26
R_PPHD5
PDD4
AC26
R_PPHD6
PDD5
AC23
R_PPHD7
PDD6
AD25
R_PPHD8
PDD7
AD26
R_PPHD9
PDD8
AC24
R_PPHD10
PDD9
AC25
PDD10
R_PPHD11
AB24
PDD11
R_PPHD12
AB23
PDD12
R_PPHD13
AA24
PDD13
R_PPHD14
Y26
PDD14
R_PPHD15
AA23
PDD15
R_PPDRVREQ
Y23
(21)
R_PPDRVREQ
R_PPDMACK#
PDDREQ
V24
(21)
R_PPDMACK#
R_PPIOR#
PDDACK[ ]
W26
(21)
R_PPIOR#
R_PPIOW#
PDIOR
Y25
(21)
R_PPIOW#
R_PPIORDY
PDIOW
Y22
(21)
R_PPIORDY
R_PPDCS1#
PDRDY
V22
(21)
R_PPDCS1#
PDCS1[ ]
R_PPDCS3#
V23
(21)
R_PPDCS3#
PDCS3[SDCS3]
R_PPDA0
W23
(21)
R_PPDA0
PDA0[SDA0]
R_PPDA1
V25
(21)
R_PPDA1
PDA1[SDA1]
R_PPDA2
W24
(21)
R_PPDA2
PDA2[SDA2]
IRQ14
AD24
(21)
IRQ14
IRQ14
SDD0
AC20
SDD1
SDD0/TBC1_SDD0
AB20
SDD2
SDD1/VALID_SDD1
AC21
SDD3
SDD2
AE18
SDD4
SDD3/RXD2_SDD3
AF18
SDD5
SDD4/RXD3_SDD4
AD18
SDD6
SDD5/RXD4_SDD5
AD19
SDD6/RBC0_SDD6
SDD7
AF19
SDD7/RBC1_SDD7
SDD8
AE20
SDD8/RXD5_SDD8
SDD9
AF20
SDD9/RXD6_SDD9
SDD10
AD20
SDD10/RXD7_SDD10
SDD11
AE21
SDD12
SDD11/RXD8_SDD11
AF21
SDD13
SDD12/RXD9_SDD12
AD21
SDD14
SDD13/TXD0_SDD13
AD22
SDD15
SDD14/TXD1_SDD14
AF22
SDD15/TXD2_SDD15
SDDREQ
AD17
(27)
SDDREQ
SDDACK#
SDDRQ/RXD1_SDDRQ
AD23
(27)
SDDACK#
SDDACK/TBC0_SDDACK
SDIOR#
AF23
(27)
SDIOR#
SDIOR/TXD4_SDIOR
SDIOW#
AE23
(27)
SDIOW#
SDIOW/TXD3_SDIOW
SDIORDY
AF17
(27)
SDIORDY
SDRDY/RXD0_SDRDY
SDCS#1
AF25
(27)
SDCS#1
SDCS1/TXD8_SDCS1[ ]
SDCS#3
AF26
(27)
SDCS#3
SDA0
SDCS3/TXD9_SDCS3[ ]
AF24
(27)
SDA0
SDA1
SDA0/TXD6_SDA0[ ]
AC22
(27)
SDA1
SDA2
SDA1/TXD5_SDA1[ ]
AE24
(27)
SDA2
IRQ15
SDA2/TXD7_SDA2[ ]
AE26
(27)
IRQ15
IRQ15
SIDEVREF
AC19
SVREF_NC
SATA50COMP
R608
360_1%(R)
AB21
SCOMPP_NC
H_TX_P_C
STX1+
C892 0.01UF
AB13
STXP1_NC
H_TX_M_C
STX1-
C893 0.01UF
AC13
STXN1_NC
H_RX_M_C
SRX1-
C291 1200PF
AF13
H_RX_P_C
SRX1+
SRXN1_NC
C290 1200PF
AE13
SRXP1_NC
S_TX_P_C
STX2+
C895 0.01UF
AB15
S_TX_M_C
STX2-
STXP2_NC
C894 0.01UF
AC15
STXN2_NC
S_RX_M_C
SRX2-
C289 1200PF
AF15
SRXN2_NC
S_RX_P_C
SRX2+
C288 1200PF
AE15
SRXP2_NC
NEAR CHIPSET
W12
VDDATS_NC1
W13
VDDATS_NC2
W14
VDDATS_NC3
W15
VDDATS_NC4
W16
+2.5VSATA
VDDATS_NC5
AC17
VDDAS_NC1
C300
C885
C879
AC11
VDDAS_NC2
AB17
VDDAS_NC3
10UF
0.1UF
0.1UF
AB11
VDDAS_NC4
VDDA0
L50
+2.5VS
FCM2012V-121
C302
+2.5VSATA
0.1UF
C301
VDDA33
L102
0.1UF
+3VS
FCM2012V-121
C900
0.1UF
All manuals and user guides at all-guides.com
H_TX_P_C
+2.5VS
VDD3
VDD2.5
H_TX_M_C
4.6mA
H_RX_M_C
H_RX_P_C
C868
U13B
0.1UF
ACZ_BITCLK
T1
ACBITCLK
ACZ_SDIN0
U3
ACSDIN0
ACZ_SDIN1
V2
ACSDIN1
ACZ_SDIN2
U1
ACSDIN2/GPIO20/PCS0
ACZ_SDIN3
V3
ACSDIN3/SLP_BTN/GPIO21/PCS1
T2
R596
22
ACSYNC[ ]
U2
R597
22
ACSDO[SOE]
T3
R593
22
ACRST
R599
4.7K
VDD3
R604
4.7K
W4
PME
PEHPSCI#
V4
BATLOW/GPI5
PEPMSCI#
Y1
CPUMISS/GPI17
RI#
Y2
RING/GPI3
SUS_ST#
Y3
SUSST1/GPO3
THERMTRIPA#_SD
Y4
AOLGPI/GPI18/THRM
AA1
A
C
RB751V
EXTSMI/GPI2
AB1
D14
SMBALRT
AC1
A
C
LID/GPI4
AD2
D15
RB751V
PWRBTN
PWROK_NB#
AF1
PWROK
CLKRUN#
AB7
CLKRUN
CPUSTP#
AC7
CPUSTP/GPO5
PCISTP#
AD6
PCISTP/GPO6
INTRUDER
AE1
INTRUDER/GPI16
SUS_CLK
AB3
SUSCLK/GPO4
SMBCLK
AC4
SMBCK1
SMBDATA
AB2
SMBDT1
V_ADJ-
AC3
SMBCK2/GPIO27
V_ADJ+
AD1
SMBDT2/GPIO26
PEWAKE#
Y5
WAKE#
SUSA#
AA2
SUSA/GPO2_GPO1
SUSB_SB#
AD3
SUSB/NC_GPO2
SUSC#
AF2
SUSC
GPI0
AE2
GPI0
AC2
GPI1
AA3
GPO0
AE3
GATE_PCIRST#
GPO1_NC
AE5
GPIOA
GPIOA/GPIO24[SA17]_GPO17[SA17]
GPIOB
AD5
GPIOB/GPIO25[SA18]_GPO18[SA18]
GPIOC
AF5
GPIOC/GPIO30[SA16]_GPO16[SA16]
GPIOD
AC6
GPIOD/GPIO31[SA19]_GPO19[SA19]
SERIRQ
AD9
SERIRQ
ICHSPK
AF8
SPKR[ ]
SIO_OSC
AB8
OSC
TPO
AF9
TPO
AE9
R634
4.7K
TEST
VDDA0
AC10
VDDA0_NC
GNDA0
AB10
GNDA0_NC
SREXT
AD11
SREXT_NC
25MHZXO_S
AE10
SXO_NC[SOE]
25MHZXI_S
AF10
SXI_NC[ROMCS]
VDDA33
AE11
VDDA33_NC
AF11
GNDA33_NC
W5
GND
V5
GND
M16
GND
N11
GND
N12
GND
N13
GND
N14
GND
N15
GND
N16
GND
(2,8,9,10,11,13,14,15,16,19,20,21,22,24,25,27,29,31,32,33)
VT8237A
SIDEVREF
L101
+2.5VS
FCM2012V-121
C898
C299
C886
(3,11,14,16,18,21,24,26,30,31,32,33,34,35)
10UF
0.1UF
0.1UF(R)
(11,14,15,16,21,22,24,29,31,32,33)
S_TX_P_C
H_TX_P_C(21)
S_TX_P_C(21)
S_TX_M_C
H_TX_M_C(21)
S_TX_M_C(21)
Power Up Strappings :
S_RX_M_C
H_RX_M_C(21)
S_RX_M_C(21)
S_RX_P_C
H_RX_P_C(21)
S_RX_P_C(21)
GPIO[D,A,C] => LDT Frequency
+3VS
000 - 200MHz (Default)
CPUSTP#
R625
4.7K
001 - 400MHz
SERIRQ
R635
4.7K
010 - 600MHz
TPO
R233
4.7K
011 - 800MHz
ICHSPK
R234
4.7K
100 - 1000MHz
ACZ_SDOUT
R210
2.2K
ACZ_BITCLK(21,25,27,29)
GPIOB => LDT Width
ACZ_SDIN0(25,27)
0 - 8-Bit (Default)
ACZ_SDIN1(21,29)
VDD3
1 - 16-Bit
PEWAKE#
R623
4.7K
PDA2 => ROMSIP Select
ACZ_SYNC (21,25,27,29)
RI#
R226
4.7K
0 - Disable (Default)
ACZ_SDOUT(21,25,27,29)
V_ADJ-
R631
4.7K
1 - Enable
ACZ_RST# (21,25,27,29)
V_ADJ+
R236
4.7K
SMBCLK
R632
4.7K
-PDCS3 => Test Mode Select
SMBDATA
R227
4.7K
0 - Disable (Default)
PME#
(17,19,20,22,24,29)
WOW_CNTL#
R615
4.7K
1 - Enable
PEHPSCI# (9)
PEHPSCI#
R600
4.7K
PEPMSCI# (9)
PEPMSCI#
R220
4.7K
SEEDI => Internal EEPROM Strapping
THERMTRIPA#_SD
R614
4.7K
SUS_ST# (10,24)
PME#
R605
10K
0 - External EEPROM (On board)(Default)
SWI#
R624
10K
1 - BIOS porting - ACR
EXTSMI#(24)
SUS_ST#
R606
10K
CPU_ALERT#(3,24)
5
4
SCI#
(24)
SUS_CLK
6
3
PDA0 => HCLK Selection
PWRBTN#(24)
CPU_ALERT#
7
2
0 - External HCLK enable (Default)
PWROK_NB#(10)
SUSA#
8
1
1 - Internal HCLK enable
PDA1 => External loop test mode
RN31
8P4R-10K
0 - Disable (Default)
VBAT
1 - Enable
GPI0
R235
1M
INTRUDER
R237
1M
SMBCLK (2,5,20,27)
+5VS
SMBDATA (2,5,20,27)
IRQ14
R627
4.7K
V_ADJ- (33)
V_ADJ+ (33)
(13)
SEEDI
CLKRUN#
R626
4.7K
PEWAKE#(9)
ACZ_SDIN1
R215
4.7K(R)
ACZ_SDIN2
R209
4.7K
SUSB_SB# (8,21,31)
ACZ_SDIN3
R598
4.7K
SUSC# (16,24)
SWI#
(24)
WOW_CNTL#(28)
SREXT
R636
4.32K_1%
GATE_PCIRST#
D04
SERIRQ (17,22,24)
ICHSPK (24)
SIO_OSC(2)
25MHZXO_S
25MHZXI_S
Y2
25MHZ
1
2
C293
C292
R_PPDCS1#
R601
16PF
16PF
1 - Disable SATA master/slave mode
R_PPDMACK#
R213
1 - Disable external SATA PHY
PCISTP#
R245
4.7K
R638
4.7K(R)
0/1:Enable/disable100Mhz VLink clock
VBAT
ACZ_SYNC
R207
4.7K(R)
(13)
VBAT
R208
4.7K
+3VS
0/1 - Enable/disable LPC FWH command
+3VS
VDD2.5
(11,33)
VDD2.5
+2.5VS
(3,8,11,13,34)
+2.5VS
VDD3
VDD3
+5VS
+5VS
Schematic Diagrams
(VD[1:0],VID3)
(VD[2])
[For VT8237]
Sheet 12 of 40
SB VT8237A-2 IDE,
+3VS
ISA & SATA
R_PPDA2
R616
1K
SEEDI
R193
1K(R)
R617
2.2K(R)
R583
2.2K
+3VS
R243
1K(R)
R242
1K(R)
R247
1K(R)
R244
1K(R)
GPIOC
R639
2.2K
GPIOA
R246
2.2K
GPIOD
R641
2.2K
GPIOB
R640
2.2K
+3VS
+3VS
R_PPDCS3#
2.2K
R607
1K(R)
R217
2.2K
+3VS
2.2K
+3VS
R_PPDA1
+3VS
R218
1K(R)
R224
2.2K
+3VS
R_PPDA0
+3VS
R231
1K(R)
R225
2.2K
SB VT8237A-2 IDE, ISA & SATA B - 13
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