Service manual
Schematic Diagrams
B - 30
Schematic Diags
NS87393 LPC Bridge & Super I/O
Sheet 29 of 42
LPC Bridge &
Super I/O
VCC3S
VCC3S
VCC3S
VCC3S
VCC3S
VCC3S
VCC3
FIRGND
FIRGND
VCC3S
FIRVCC
FIRVCC
VCC3S
VCC3S
MBID1
MBID0
LAD2
LAD1
LAD0
PINIT#
IRMODE
PPERR#
WRPRT#
IRTX
BIOSCS#
IRRX
PATFD#
DISKCHG#
TRK0#
RDATA#
PRT_NFDD#
PSTB#
MEMR#
INDEX#
3MODE#
LAD3
LDRQ#
LAD1
PCLK_LPC
DRV0#
RIA#
HDSEL#
DIR#
PD6
MEMW#
SA15
LFRAME#
RDATA#
PD5
DCDA#
SA13
WGATE#
INDEX#
SD1
SD2
SD5
PD0
PD7
SD4
SA3
PACK#
LAD3
SUS_STAT#
PSLCT
DSRA#
SA6
SA0
PME#
DISKCHG#
TRK0#
PD3
PPE
SA2
SD[0..7]
LAD0
LAD2
SERIRQ
CTSA#SD3
MBID1
MTR0#
SA18
SA14
WRPRT#
PD1
PSLIN#
BIOSCS#
3MODE#
PD2
SOUTA
SINA
DTRA#
SA9
SA5
SA4
SD0
SD7
LAD[0..3]
WDATA#
PD4
RTSA#
SD6
PCIRST#
LDRQ#
FLASH#
SA16
SA1
STEP#
PBUSY
MEMR#
SA17
SA12
SA8PCLK_LPC
393-48M
MBID0
SA7
SA11
RIA#
CTSA#
SINA
DSRA#
DCDA#
MBID1
MBID0
SA10
393-48M
IRMODE
IRRX
IRTX
SOUTA
DTRA#
RTSA#
MEMW#
R248 10K
R211 4.7K(R)
R213 10K(R)
R212 1K
R247 10K(R)
R202 0(R)
RN43 8P4R-10K
1
2
3
4
7
6
5
8
RP1
10P8Rx4.7K
1
2
3
4
5
10
6
7
8
9
R574 10K
R223 1K
R234 10K
R21010K
R204 10K
C200
0.1U
C722
0.1U
Y6
48MHZ-OSC(R)
1
2
4
3
CNT
GND
VCC
OUT
R245 33
C756
0.1U(R)
2 1
R592 R
FDCCOM
LPTIR
LPC
ISA
POWER
U39
PC87393
15
16
17
18
8
9
12
6
7
11
10
19
20
14
39
63
88
13
38
64
89
21
22
23
24
25
26
27
28
29
30
31
32
33
34
52
50
48
46
45
44
43
42
35
36
37
40
41
47
49
51
53
54
55
56
57
58
59
60
61
62
70
69
68
67
3
2
1
100
99
98
97
96
4
5
73
71
72
74
75
76
77
78
79
80
81
82
83
84
85
86
87
90
91
92
93
94
95
65
66
LAD0
LAD1
LAD2
LAD3
LCLK
LRESET#
LFRAME#
CLKRUN#/GPIO36
LPCPD#
LDRQ#
SERIRQ
SMI#/GPIO35
CLKIN
VDD
VDD
VDD
VDD
VSS
VSS
VSS
VSS
DSKCHG#
HDSEL#
RDATA#
WP#
TRK0#
WGATE#
WDATA#
SETP#
DIR#
DR0#
MTR0#
INDEX#
DENSEL
DRATE0/IRSL2
INDEX#/PD0
TRK0#/PD1
WP#/PD2
RDATA#/PD3
DSKCHG#/PD4
MSEN0/PD5
DRATE0/PD6
MSEN1/PD7
XRDY/PNF
WGATE#/SLCT
WDATA#/PE
MTR1#/BUSY_WAIT#
DR1#/ACK#
STEP#/SLIN#_ASTRB#
DIR#/INIT#
HDSEL#/ERR#
DENSEL/AFD#_DSTRB#
STB#_WRITE#
DCD1#
DSR1#
SIN1
TEST/RTS1#
XCNF0/SOUT1
CTS1#
BADDR/DTR1#_BOUT1
RI1#
IRTX
IRRX1
IRRX2_IRSL0
IRSL1
XD0/GPIO00/JOYABTN1
XD1/GPIO01/JOYBBTN1
XD2/GPIO02/JOYAY
XD3/GPIO03/JOYBY
XD4/GPIO04/JOYBX
XD5/GPIO05/JOYAX
XD6/GPIO06/JOYBBTN0
XD7/GPIO07/JOYABTN0
XWR#/XCNF1
XRD#/GPIO34/WDO#
XIOWR#/XCS1#/MTR1#/DRATE0
XIORD#/GPIO37/IRSL2/DR1#
XCS0#/DR1#/XDRY/GPIO25
XA19/DCD2#/JOYABTN0/GPIO17
XA18/GPIO16/JOYBBTN0/DSR2#
XA17/GPIO15/JOYAX/SIN2
XA16/GPIO14/JOYBX/RTS2#
XA15/GPIO13/JOYBY/SOUT2
XA14/GPIO12/JOYAY/CTS2#
XA13/GPIO11/JOYBBTN1/DTR2#_BOUT2
XA12/GPIO10/JOYABTN1/RI2#
XA11/GPIO33/XIOWR#/MDTX
XA10/GPIO32/XIORD#/MDRX
XA9/GPIO31/MTR1#/PIRQD
XA8/GPIO30/PIRQC
XA7/GPIO27/PIRQB
XA6/GPIO26/PRIQA/XSTB2#
XA5/XSTB1#/XCNF2
XA4/GPIO24/XSTB0#
XA3/GPIO23
XA2/GPIO22
XA1/GPIO21
XA0/GPIO20
NC
PWUREQ#/IRSL3
T291
R214 47K
C277 0.1U
C261
0.1U
C222
4.7U(1206)
C221
4.7U(1206)
C723
0.1U
R215
10K
R224
10K
R225
R
R203
R
RN36 8P4R-47K
1
2
3
4
7
6
5
8
T
T300
T290
R246 0
T289
T288
R148
4.7K(R)
R157 2.2K
JA1
SHORT-A
1 2
C131 10U/10V(0805)
C132
4.7U(1206)
C685
1000P
RN87
8P4R-18
18
27
36
45
R164
47K
U12
HSDL-3600
1
2
7
6
8
9
3
10
4
5
11
VCC
AGNDD
GND
NC
RXD
TXD
FIR_SEL
LEAD
MDO
MD1
GNDPAD
C129 0.047U
L55 BK2125HS121
RN85
8P4R-18
18
27
36
45
R156 2.2K
R163
4.7K
C130 0.1U
R714 10K
R715 0(R)
LFRAME#[19,31]
LDRQ#[19]
PCIRST#[6,11,19,23,30,31,32,33]
DRV0# [30]
PD[0..7] [28]
PACK# [28]
PBUSY [28]
PPERR# [28]
PPE [28]
PSLCT [28]
PINIT# [28]
IRRX
IRTX
IRMODE
PSLIN# [28]
PATFD# [28]
PSTB# [28]
DSRA# [30]
SOUTA [30]
DCDA# [30]
CTSA# [30]
DTRA# [30]
SINA [30]
RIA# [30]
RTSA# [30]
LAD[0..3][19,31]
393-48M
SUS_STAT#[19]
SERIRQ[19,31,33]
SD[0..7][28]
DIR# [30]
MTR0# [30]
STEP# [30]
WDATA# [30]
WGATE# [30]
HDSEL# [30]
INDEX# [30]
TRK0# [30]
WRPRT# [30]
RDATA# [30]
DISKCHG# [30]
3MODE# [30]
MEMW#[28]
MEMR#[28]
BIOSCS#[28]
PME#[19,30,31,33,35,36]
393-48M
MBID0
SA0[28]
SA1[28]
SA2[28]
SA3[28]
SA12[28]
SA13[28]
SA14[28]
SA15[28]
SA16[28]
SA17[28]
SA18[28]
SA4[28]
CLK48_IO[5]
IRRX
IRTX
IRMODE
SA5[28]
SA6[28]
SA7[28]
SA8[28]
SA9[28]
SA10[28]
SA11[28]
MBID1
FLASH#[28]
PCLK_LPC[5]
Close to PC87393
FDD
LPC
Close to PC87393
CLOSE TO PC87393
COM
IR
BASE ADDRESS CONFIGURATION
DTRA# PULL-UP :4E
DTRA# PULL-DOWN :2E (DEFAULT)
XBUS RESET CONFIGURATION