Chapter 3: Board Layout
18
C
C
C
N
N
N
1
1
1
C
C
C
N
N
N
2
2
2
R
R
R
J
J
J
3
3
3
R
R
R
J
J
J
2
2
2
R
R
R
J
J
J
1
1
1
H
H
H
D
D
D
M
M
M
I
I
I
C
C
C
O
O
O
M
M
M
1
1
1
M
M
M
P
P
P
C
C
C
I
I
I
E
E
E
2
2
2
M
M
M
P
P
P
C
C
C
I
I
I
E
E
E
1
1
1
C
C
C
O
O
O
N
N
N
1
1
1
S
S
S
A
A
A
T
T
T
A
A
A
1
1
1
P
P
P
S
S
S
4
4
4
P
P
P
1
1
1
J
J
J
2
2
2
0
0
0
L
L
L
P
P
P
C
C
C
1
1
1
J
J
J
7
7
7