
Date: March 29, 1996 Sheet 15 of 23
Size Document Number
REV
B
ElanSC300/310 Evaluation Board
2.2
Title
Serial & Parallel Port Circuits & Conns
AMD Proprietary/All Rights Reserved
(800) 222-9323
Austin, Texas 78741
5204 E. Ben White Blvd.
(C) Advanced Micro Devices, Inc.
side view
E
d
g
e
o
f
B
o
a
r
d
Connector
Serial
3
4
5
7
8
9
5
9
4
8
3
7
2
6
1
P19
SERIAL
AMP 747840-4
SIN1
SOUT1
DCD1#
DSR1#
RTS1#
SIN1R
SOUT1R
DCD1R#
DSR1R#
RTS1R#
R122
300
R124
300
R125
300
R126
300
R127
300
R128
300
R116
1M
RO3
21
RO2
22
RO4
20
DI2
23
DI3
19
RO1
24
DI1
25
RO5
18
RI3
9
RI2
8
RI4
10
DO3
11
RI1
6
DO1
5
RI5
12
ON/OFF
13
C1+
3
C1-
4
C2+
27
C2-
26
V+
1
V-
28
5V
2
GND
17
DO2
7
U30
LT1337A(V5)
28-WSOIC
R117
1M
R118
1M
R119
1M
R120
1M
VCC5
SIN
SOUT
DCD#
DSR#
RTS#
CTS#
DTR#
RI#
PMC2
VCC5
2
3
D23
RB400D
C116
1UF/16V
GND
C92
0.1UF
SRPVPLS
SRPC1P
SRPC1M
C115
1UF/16V
CTS1R#
DTRX1R#
RI1R#
SRPC2P
SRPC2M
SRPVM
GND GND
R121
300
R123
300
C113
1UF/16V
C114
1UF/16V
C87
220PF
C88
220PF
C89
220PF
C90
220PF
C91
220PF
GND
GND
GND
GND
GND
CTS1#
DTRX1#
RI1#
C84
220PF
C85
220PF
C86
220PF
GND
GND
GND
GND
Component
side view
1
2
6
Serial Port Interface
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
P20
PRINTER
AMP 747846-4
PPSTRB#
PPAFDT#
PPINIT#
PPSLCTN#
PD0
PD1
PD2
PD3
PD4
PD5
PPERR#
C101
220PF
GND
C102
220PF
C103
220PF
C104
220PF
GND
GND
GND
R129
47
R130
47
R131
47
R132
47
PMEMW#
R145
4.7K
R146
4.7K
R240
*0
R143
4.7K
R144
4.7K
VCC5
EMEMW#
PMEMR#
INIT#
STRB#
AFDT#
SLCTIN#
EMEMR#
R242
*0
PPOEN#
SLCTIN#
without parallel port.
ElanSC300 rev B with parallel port.
Populate R242 & R240 and depop R243 & R241 if using ElanSC300 rev A or
Populate R243 & R241 and depop R242 & R240 if using ElanSC300 rev B
If using ElanSC310, depopulate all 4 resistors: R240 - R243.
R243
*0
pages 5 and 11.
Also see notes on
INIT#
R241
*0
SD0
SD1
SD2
SD3
SD4
SD5
SD6
SD7
D0
3
Q0
2
D1
4
Q1
5
D2
7
Q2
6
D3
8
Q3
9
D4
13
Q4
12
D5
14
Q5
15
D6
17
Q6
16
D7
18
Q7
19
OC
1
LE
11
GND
10
VCC
20
U29
74HC373(V5)
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
C93
220PF
C110
0.1UF
VCC5
C94
220PF
C95
220PF
C96
220PF
C97
220PF
PD6
PD7
PPACK#
PPBUSY
C98
220PF
C99
220PF
C100
220PF
PPPE
PPSLCT
GND
Connector
1
14
Parallel
GND
GND
GND
GND
GND
GND
GND
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD[0..7]
GND
GND
VCC5
SD0
SD1
SD2
SD3
SD4
SD5
SD6
VDA
1
VDB
24
A0
3
B0
22
A1
4
B1
21
A2
5
B2
20
A3
6
B3
19
A4
7
B4
18
A5
8
B5
17
A6
9
B6
16
A8
11
B8
14
A7
10
B7
15
GND
12
GND
13
DIR
2
G
23
U31
HD151015
24-SOIC
VCCB>=VCCA
VCCSYS5
PPCLKR
GND
C112
0.1UF
VCCSYS5
VCC5
11
12
13
1
4
U41D
74HCT02(V5)
PPDWE#
IOW#
SD[0..15]
IOR#
SD[0..15]
VCCSYS5
4
5
6
1
4
U32B
74HCT32(SYS5)
PPRD#
SD7
GND
PD7
GND
GND
PPRD#
C111
0.1UF
R138
4.7K
R139
4.7K
R140
4.7K
R141
4.7K
VCC5
R142
4.7K
VCC5
E
d
g
e
o
f
B
o
a
r
d
2
3
4
5
6
7
8
9
15
16
17
18
19
20
21
Component
side view
10
11
12
13
22
23
24
25
GND
C105
220PF
C106
220PF
C107
220PF
C108
220PF
GND
GND
GND
C109
220PF
R133
47
R134
47
R135
47
R136
47
R137
47
GND
ERR#
BUSY
PE
ACK#
SLCT
Parallel Port Interface