SCD1284 INTEL [Intel Corporation], SCD1284 Datasheet - Page 17

• Manufacturer Part Number: SCD1284
• Description: IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports
• Manufacturer: INTEL [Intel Corporation]

3.0
3.1
Datasheet
NOTE: (*) Denotes negative-true signal.
‘N/C’ indicates no connection;
make no connection to these pins.
DMAREQ*
DMAACK*
Pin Information
Pin Diagram
DSR3*
DSR2*
DTR3*
RTS3*
CTS3*
DTR2*
RTS2*
CTS2*
RXD3
RXD2
DB[7]
DB[6]
DB[5]
DB[4]
DB[3]
DB[2]
DB[1]
DB[0]
TXD3
TXD2
CD3*
CD2*
GND
GND
GND
RI3*
RI2*
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
IEEE 1284-Compatible Parallel Interface Controller — CD1284
CD1284
100-Pin MQFP
(See table on next page.)
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
N/C
CLK/2
CS*
DS*
R/W*
CLK
GND
V
GP[0]
GP[1]
GP[2]
GP[3]
GP[4]
GP[5]
GP[6]
GP[7]
GND
PDBEN
RESET*
DTACK*
DPASS*
DGRANT*
SVCACKP*
SVCREQP*
SVCACKM*
SVCREQM*
SVCACKT*
SVCREQT*
SVCACKR*
SVCREQR*
CC
17