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1
2
A
VC C
D1
R 1
C1
VCC
C1 3
C1 4
C52
IC4
PB7
17
P B7 ( OC 2/O C1C)
B
PB6
16
P B6 ( OC 1B)
PB5
15
P B5 ( OC 1A )
PB4
14
P B4 ( OC 0)
PB3
13
P B3 ( M IS O)
PB2
12
P B2 ( M OSI )
PB1
11
P B1 ( SC K )
PB0
10
P B0 ( SS *)
PD 7
32
P D7 ( T 2)
PD 6
31
P D6 ( T 1/RX CA N )
PD 5
30
P D5 ( XC K1 /TX CA N)
PD 4
29
P D4 ( IC P1)
PD 3
28
P D3 ( T XD1/ INT 3)
PD 2
27
P D2 ( RXD1 /INT 2)
PD 1
26
P D1 ( S DA/I NT1 )
PD 0
25
P D0 ( S C L/I NT 0)
PE 7
9
P E 7 (I C P 3/I NT7 )
PE 6
8
P E 6 (T 3 /INT 6)
VC C
PE 5
7
J P1
P E 5 (O C 3C/ INT 5)
PE 4
6
P E 4 (O C 3B/I N T 4 )
PE 3
5
P E 3 (O C 3A/ A I N1)
PE 2
4
P E 2 (X C K0/AIN 0)
T O SC1 /PG 4
J 1
PE 1
3
P E 1 (T XD 0 / P DO )
T O SC2 /PG 3
10
9
PE 0
2
P E 0 RXD0/( P DI )
8
7
6
5
54
P F 7 (A DC7/T DI )
4
3
55
C
P F 6 (A DC6/T DO)
2
1
56
P F 5 (A DC5/T M S)
57
P F 4 (A DC4/T C K)
58
P F 3 (A DC3)
59
P F 2 (A DC2)
60
P F 1 (A DC1)
61
P F 0 (A DC0)
AT M E GA1 2 8 -16 A I
R 4
R5
1K
1K
LE D3
L E D4
D
1
2
3
4
VC C
IC3
20
A0
10
RE SE T
A0
1
A1
9
P E N
A1
A2
8
A2
42
A15
A3
7
( A15) P C7
A3
41
A14
A4
6
( A14) P C6
A4
40
A13
A5
5
( A13) P C5
A5
39
A12
A6
4
( A12) P C4
A6
38
A11
A7
3
( A11) P C3
A7
37
A10
A8
25
( A10) P C2
A8
36
A9
A9
24
( A9) PC 1
A9
35
A8
A10
21
( A8) PC 0
A1 0
A11
23
A1 1
A12
2
A1 2
44
D7
A13
26
( AD7) P A7
A1 3
45
D6
A14
1
( AD6) P A6
A1 4
46
D5
( AD5) P A5
47
D4
RD*
22
( AD4) P A4
O E
48
D3
A15
20
( AD3) P A3
CS
49
D2
( AD2) P A2
50
D1
WR *
27
( AD1) P A1
W E
51
D0
( AD0) P A0
CY622 56L L- 70S N I
T P3
19
18
T P4
43
(AL E ) P G2
34
(RD *) P G1
33
(W R*) PG 0
C3
2 2 p
23
XT AL 2
24
Y2
XT AL 1
14.7 456M Hz
62
AR EF
C4
2 2 p
IC4 alternate par t.
AT 90C AN 1 2 8-1 6AC
3
4
5
6
IC1
11
D0
D7
2
19
A 7
I /O1
D0
Q0
12
D1
D6
3
18
A 6
I /O2
D1
Q1
13
D2
D5
4
17
A 5
I /O3
D2
Q2
15
D3
D4
5
16
A 4
I /O4
D3
Q3
16
D4
D3
6
15
A 3
PD 0
I /O5
D4
Q4
17
D5
D2
7
14
A 2
I /O6
D5
Q5
18
D6
D1
8
13
A 1
I /O7
D6
Q6
19
D7
D0
9
12
A 0
I /O8
D7
Q7
VCC
1 1
20
L E
VCC
C 1 6
1
10
O E
GND
10 0n
SN 74HC57 3ADW
VCC
Op tion
28
VCC
C 1 5
10 0n
14
VS S
VCC
C5 3
Y3
IC5
V C C
100n
32.7 68kHz
1
8
X1
V CC
2
7
R2
X2
S QW/O UT
G 1
10 K
VCC
3
6
P D0
CR 1225F V
VBAT
SCL
4
5
P D1
G ND
S DA
R3 4
10 k
DS 1307Z
Op tion
proconx
proconx
proconx
proconx
FOCUS Software Engineering Pty Ltd
Email: mail@proconx.com Web: www.proconx.com
PO Box 36, Mt Ommaney QLD 4074, Australia
C op yrigh t (c) 2 00 5 FOC US Soft ware Eng ine erin gPt yLt d. A ll rig hts rese rve d.
Th is draw i ng i s th e int elle ctu al pro perty of FOCUS Soft ware Eng ine ering Pt yLt d. It is
su bj ect to retu rn upo n deman dand ma y not be pa sse d on to any th ird par ty, or used
d irect ly or i nd ire c t l y f or any o ther purpos e th an t he man ufac ture or c ons truc tion of
e qu ipme nt , or in the d esig n or instal la tio n of faci lit ies t o th e o rder of FO CUS
So ft ware Eng in e e ring Pty Lt d.
5
6
7
8
PE [0..7]
PE [ 0..7]
PD [0.. 7]
PD [0.. 7]
PB [0..7 ]
PB[ 0..7 ]
A[0 ..15]
A[0 ..15]
IC 2
VCC
6
8
S CL
VC C
7
W P
C2
3
5
P D1
A2
S DA
2
1 00n
A1
1
4
A0
V SS
24 LC5 12-E /SM
I C2 alter nate p ar t
F M 24C25 6-S E ( R am t r on )
D[0 ..7]
D[0 ..7]
RD*
RD*
WR*
WR*
R3
10 K
Project Titl e
XNUT-100
Titl e
CPU/MEMORY
Project N umber
Document N umber
R ev
J3 6 1
J36100 1S
2
Fil e name
J3 6 10 01S2-CPU and Mem o r y. SchDoc
Design e d By
Date
Check ed By
D ate
M H
*
Dr aw n By
Date
Appr o ved By
D ate
M H
Date:
6/06 /2005
Time:
2:15:49 PM
S h eet
2
of
5
Fil e :
C: \ J3 61- F ocus-xnut\Protel File s\SC H \ Re v2\J 361001S2-CPUand M emor y .Sch D oc
7
8
A
B
C
D
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