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In order to minimize the crosstalk in ECP mode,
the termination circuits shown below are recommended
Place all termination circuits close to the connector to avoid EMI
13,23
PP5_PD[0..7]
PP5_PD0
PP5_PD1
PP5_PD2
PP5_PD3
PP5_PD4
PP5_PD5
PP5_PD6
PP5_PD7
13
PP5_STB#
13,23
PP5_AFD#
13
PP5_ACK#
13
PP5_BUSY
13
PP5_ERR#
13,23
PP5_INIT#
13,23
PP5_SLIN#
13
PP5_PE
13
PP5_SLCT
15
KB5_3MODE
P5VSW
26
P5VSW
RN31
1
2
3
4
5
P5VSW
SARES10_4.7K
RN13
1
8
2
7
3
6
4
5
SARES8_33
RN14
1
8
2
7
3
6
4
5
SARES8_33
C154
C176
C175
C177
ALL 470pF
RN32
1
2
3
4
5
P5VSW
SARES10_4.7K
RN15
1
8
2
7
3
6
4
5
SARES8_33
RN16
1
8
2
7
3
6
4
5
SARES8_33
1
2
R184
33
C213
C201
C212
330pF
330pF
680pF
C211
C210
330pF
680pF
P5VSW
10
9
8
7
6
R220
P5VSW
C202
C204
C203
C205
ALL 470pF
P5VSW
10
9
8
7
6
C206
680pF
C209
C200
330pF
680pF
Q13
TP0610L/T
R183
2
3
1
2
1K
1
2
R182
100K
1
P5VEXF_STB#
23,26
CN13
P5VEXF_STB#
1
PP5_AFDR#
14
PP5_PDR0
2
PP5_ERRR
15
PP5_PDR1
3
PP5_INITR#
16
PP5_PDR2
4
PP5_SLINR#
17
PP5_PDR3
5
18
PP5_PDR4
6
19
PP5_PDR5
7
20
PP5_PDR6
8
1
2
1K
21
PP5_PDR7
9
22
PP5_ACKR#
10
23
PP5_BUSYR
11
24
PP5_PER
12
25
PP5_SLCTR
13
PRNT25
PP5_EXTPNF#
23
P5VSW
1
R114
10K
2
SI5_PNF
13,16,26
3
Q8
1
RN1424
2
KB5_3MODEDOC
23
CONFIDENTIAL
Title
Size
Document Number
A3
ACER ADVANCED LABS
PROJECT MARS
PARALLEL PORT INTERFACE
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