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Winbond Electronics Corp. Advanced PC Product Center
1.0
Signal/Pin Connection and Description
1.1 CONNECTION DIAGRAM
C
LOCKI14
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
PD6
38
HD_LED
PD7
37
PRIMARY_HD
36
ACK
SECONDAR
Y_HD
BUSY_WAIT
35
SCSI
PE
34
REF5V
33
SLC
T
VSB5
32
RI1
REF5V_STBY
VDD
3
31
PCIRST_OUT
30
DTR_BOUT1/XOR_OUT/BADDR
PCIRST_OUT2/GPIOE12
VSS
29
GPIOE13
CTS1
28
VSB3
27
SOUT1/TES
T
BKFD_CUT
26
RTS1/TRIS
VSS
25
SIN1
LATCHED_BF_CUT
24
DSR1
PC8374L
G
PIOE17
23
DCD1
PS_ON
22
DENSEL
128-Pin PQFP
PWRGD_PS
21
DRATE
0
CPU_PRESENT
INDEX
20
PW
RGD_3V
19
MTR
0
SLP_S3
SLP_S5
18
DR0
(Top View)
DIR
17
SMB1_SCL
16
STEP
HMSCL/SMB2_SCL
15
WDATA
SMB1_SDA
WGAT
E
14
HMSDA/SMB2_SDA
13
TRK
0
GPIO15
WP
12
RSMRST
RDATA
11
VSB3
GRN_LED
10
HDSEL
DSKCHG
9
YLW_LED
VSS
8
VSS
VCORF
VBAT
7
KBRST
VDD3
6
5
GA20
SIOPME
KBDAT
4
GPIOE16
KBCLK
3
GPIOE14
MDAT
2
NC
MCLK
1
Plastic Quad Flatpack (PQFP), JEDEC
Order Number PC8374L0xxx/VLA
Package Number VLA128A
Note: ’xxx’ stands for the following Keyboard
Controller Microcodes:
IBW - for AMI
IBU - for Intel
IBM - for IBM
ICG - for Dell
ICK - for Phoenix
Revision 1.1
www.national.com
13
Winbond Electronics Corp. Advanced PC Product Center
1.0 Signal/Pin Connection and Description
(Continued)
Pin
Pin Name
Pin
Pin Name
Pin
Pin Name
Pin
Pin Name
V
CORF
1
MCLK
33
SLCT
65
CLOCKI14
97
V
BAT
2
MDAT
34
PE
66
HD_LED
98
3
KBCLK
35
BUSY_WAIT
67
PRIMARY_HD
99
SIOPME
4
KBDAT
36
ACK
68
SECONDARY_HD
100
GPIOE16
5
GA20
37
PD7
69
SCSI
101
GPIOE14
V
DD3
NC
6
38
PD6
70
REF5V
102
V
SB5
7
KBRST
39
PD5
71
103
GPIOE00/SWD
V
SS
8
40
PD4
72
REF5V_STBY
104
GPIOE01/FANTACH3
9
D
SKCHG
41
PD3
73
PCIRST_
OUT
105
FANTACH4/GPIOE02
10
HDSEL
42
PD2
74
PCIRST_OUT2/GPIOE12
106
GPIOE03/FANPWM1
V
SB3
11
RDATA
43
PD1
75
GPIOE13
107
V
SB3
12
WP
44
PD0
76
108
GPIOE04/FANPWM2
13
TRK0
45
ERR
77
BKFD_CUT
109
GPIOE05/FANPWM3
14
WGATE
46
V
SS
78
V
SS
110
V
SS
15
WDATA
47
SLIN
_AS
TRB
79
LATCHED_BF_CUT
111
GPIOE06/FANTACH1
16
STEP
48
INIT
80
GPIOE17
112
GPIOE07/FANTACH2
V
DD3
17
DIR
49
81
PS_ON
113
CC_DDCSCL/GPIOE13
18
DR0
50
AFD_DSTRB
82
PWRGD_PS
114
5V_DDCSCL/GPIOE11
19
MTR0
51
STB
_WR
ITE
83
CPU_PRESENT
115
CC_DDCSDA/GPIOE12
20
INDEX
52
SMI
84
P
WRGD_3
V
116
5V_DDCSDA/GPIOE10
21
DRATE0
53
S
ER_IR
Q
85
SLP_S3
117
GPO11/V
sbS
trap1
22
D
ENSE
L
54
LDRQ
86
SLP_S5
118
GPIOE00/RI2/I
RTX
23
DCD1
55
PCI_CLK
87
SMB1_SCL
119
GPIOE01/SIN2/RI2
24
DSR1
56
LFRAME
88
SMB2_SCL/HMSCL
120
GPIOE02/
SOUT2
/IRRX
25
SIN1
57
LAD3
89
SMB1_SDA
121
GPIOE0
3/DS
R2/SIN2
GPO12/RTS2/SOUT2/
VddStrap1
V
SS
26
RTS1/TRIS
58
90
SMB2_SDA/HMSDA
122
27
SOUT1/TEST
59
LAD2
91
GPIO15
123
NC
28
CTS1
60
V
DD3
92
RSMRST
124
GPIOE04/CTS2/DSR2
G
PO13/
DTR_BOUT2/
RTS2/VddStrap2
V
SS
V
SB3
29
61
LAD1
93
125
DTR_BOUT1/BADDR/
XOR_OUT
30
62
LAD0
94
GRN_LED
126
GPIOE05/DCD2/CTS2
G
PIOE
06/IRRX/
DTR_BOUT2
V
DD3
31
63
PCI_RESET
95
YLW_LED
127
V
SS
32
RI1
64
IDE_RSTDRV
96
128
GPIOE07/IRTX/DCD2
www.national.com
14
Revision1.1
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