Atmel AT89C5131A, Руководство пользователя по оборудованию

Страница: 10 / 23

Hardware Description
2-8 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
2.5 External
Connectors
These two external connectors to build a customer extended board easily.
Figure 2-7. Top View of J5 and J6 Connectors
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6 - WR
P3.7 - RD
NC
NC
NC
NC
NC
NC
NC
NC
VCC
VSS
SDA
SCL
NC
RESET
EA
BP1
A16
NC
VSS
XTAL2
VSS
NC
NC
NC
NC
NC
NC
NC
NC
BUZZER
VSS
VSS
47
45
43
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1 48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
4.35 12V
4.35 12V
VSS
NC
NC
NC
NC
NC
NC
NC
NC
PSEN
VSS
ALE
P1.0 - KBD 0
P1.1 - KBD 1
P1.2 - KBD 2
P1.3 - KBD 3
P1.4 - KBD 4
P1.5 - KBD 5
P1.6 - KBD 6
P1.7 - KBD 7
VSS
VSS
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P4.0
P4.1
NC
NC
NC
NC
NC
NC
47
45
43
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1 48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
J5 J6