Cirrus Logic EV2 - Manual (Page 30)

Rev. 2.1 30
CobraNet™ EV-2
1
2
34
A B C D
4
3
2
1
D C B A
C
o
braN
et (TM
) Eval
uati
on Board - M
P
C
, SR
A
M
and Hex
Sw
it
ches
E
2500 55th Street Sui
te 210
T
itle
:
File:
EV
2_8051.Sch
29
19-O
ct-2004
Date:
Sheet
of
Engineer: Bill Lowe
www.
peakaudi
o.
com
www.
ci
rrus.
com
Size:
Num
b
er:
Revision:
A
Cirrus Logic, Inc.
B
o
ulder, C
O
80301
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7
ALE
WR
#
RD# TXD RXD W
A
TCHDOG
HREQ#
M
R
ESET
HACK#
M
U
TE#
M
R
ESET
M
U
TE#
GND +5V
B
200
.1S
C
221
10A
20S
Select program
m
ing m
ode.
SK
T200
SOCKET40
RXD TXD
HREQ#
AD[0
..
7
]
AD[0
..
7
]
HACK#
W
A
TCHDOG
TP200 TPS
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RST
9
RXD/P3
.0
10
TXD/P3.
1
11
INTR0/P3.
2
12
INTR1/P3.
3
13
TIM
ER 0/P3.
4
14
TIM
ER 1/P3.
5
15
WR
/P
3
.6
16
RD/P3.
7
17
XTAL2
18
XTAL1
19
EA
31
ALE
30
PSEN
29
P0.
0(AD0)
39
P0.
1(AD1)
38
P0.
2(AD2)
37
P0.
3(AD3)
36
P0.
4(AD4)
35
P0.
5(AD5)
34
P0.
6(AD6)
33
P0.
7(AD7)
32
P2.
0
(A8)
21
P2.
1
(A9)
22
P2.
2(A10)
23
P2.
3(A11)
24
P2.
4(A12)
25
P2.
5(A13)
26
P2.
6(A14)
27
P2.
7(A15)
28
U
200
M
C
U
8051
+5V
GND
TP201 TPG
GND
PSEN#
PSEN#
GND
A1
4
10
A1
3
9
A1
2
8
A1
1
7
A1
0
6
A9
5
A8
4
A7
3
A3
25
A2
24
A0
21
A1
23
A6
2
CE
20
OE
22
WE
27
A5
1
D0
11
D1
12
D2
13
D3
15
D4
16
D5
17
D6
18
D7
19
A4
26
U
204
7C
199-12
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7
A0 A1 A2 A3 A4 A5 A6 A7
A8 A9 A1
0
A1
1
A1
2
A1
3
A1
4
A1
5
A8 A9 A1
0
A1
1
A1
2
A1
3
A1
4
A1
5 R
200
10K
P1S
+5V
WR
#
RD#
+5V
WR
#
OUT
3
GND
2
VCC
4
U
210
33M
HZ OSC
+5V GND
GND +5V
B
204
.1S
B
210
.1S
INIT_IO#
INIT_IO#
PROGRAM
#
PROGRAM
#
HEX_
DATA_
OUT
HEX_
DATA_
IN
HEX_
CLOCK
HEX_SHIFT
C
13
B
12
D
14
SER
10
A
11
CLK INH
15
SH/LD
1
CLK
2
E
3
F
4
G
5
H
6
QH
7
QH
9
U
201
74H
C
165
C
13
B
12
D
14
SER
10
A
11
CLK INH
15
SH/LD
1
CLK
2
E
3
F
4
G
5
H
6
QH
7
QH
9
U
202
74H
C
165
GND
GND +5V
B
201
.1S
GND +5V
B
202
.1S
R
201
10K
P1S
+5V
ALE RD# A
[8..15]
A
[8..15]
MC
U
_
P
3
5
MC
U
_
P
3
5
1
1
4
3
2
2
C
5
8
4
SW
202
BCH SW
3
1
1
4
3
2
2
C
5
8
4
SW
201
BCH SW
3
1
1
4
3
2
2
C
5
8
4
SW
204
BCH SW
3
1
1
4
3
2
2
C
5
8
4
SW
203
BCH SW
3
10
2
3
4
5
6
7
8
1
9
R
206
10K
SIP
10
2
3
4
5
6
7
8 1
9
R
205
10K
SIP
A
[0..7]
A
[0..7]
GND
R
203
10K
P1S
+5V
MC
U
_
C
L
K
MC
U
_
C
L
K
MC
U
_
P
1
7
MC
U
_
P
1
7
GND
1 2
3 4
= ON
SW
200
DIPSW
1_SPDT
R
204
10K
P1S
+5V
R
202
51.1P1S