Atmel AT91EB01, Руководство пользователя

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Appendix B - Schematics
AT91EB01 Evaluation Board User Manual 7-5
Figure 4. JTAG Interface, Reset, Interrupts and LEDs
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
A
A
B
B
C
C
D
D
JT
A
G
Interfa
c
e
FI
Q
Interru
p
t
Bu
tt
o
n
LED1 LED2 LED3
To
r
e
s
e
t t
h
e
TA
P
c
o
n
tr
o
lle
r
hold
T
M
S
hi
gh
for
5 TCK
cycles.
S
ystem
R
e
s
e
t
Use
r
D
e
fi
ned
Bu
tt
o
n
IRQ Interr
u
p
t
Bu
tt
o
n
Decoupling capacitor for 74LV
14
20 way box header
Reset T
h
reshold =
3
.0
8
V
Reset held low for 140m
s
m
in
.
P
rint on P
C
B
the function o
f
e
a
c
h
p
u
s
h
b
u
tt
o
n
i.
e
.
FI
Q
, TI
O
B
1
, I
R
Q
0
, RESET
The chassis plane will be joined to the signal ground plan
e
a
t
one point
only. See D
ra
w
in
g
.s
c
h
f
o
r s
uggested
posi
ti
o
n
o
f t
h
e
w
ir
e
l
in
k
.
Place
c
apacitors as close as possible
to
the connector.
AT9
1
EB0
1
will h
a
v
e
in
d
iv
idual
L
E
D
s
for D1A
, D1B
and D1C.
A
T
9
1
E
B
02 has the LE
Ds in a
single package
henc
e
t
h
e
re
ference names.
P
rint on P
C
B
the name of each LE
D
i.e
. L
E
D1
, L
E
D2
, L
E
D3
RED AM
BE
R
GREEN
P
ri
n
t on P
C
B
JT
A
G
Facto
ry
f
it
te
d
ARM EOI-0042 (JTAG.SCH
)
B
JTAG interface, Reset, Interrupts & LEDs
(c) ARM Ltd. 90 F
u
lbourn Road
Cherry H
in
to
n
C
ambridge
CB1 4JN
B
48
Thursd
a
y
, A
ugust 20, 1998
Titl
e
S
iz
e
Document Number
Rev
Date:
Sheet
of
IRQ_ONB 0
TIOA
0
TIOA1 TIOB0
TIOA0 TIOA1 TIOB0
NRST
VDD
GND
TDI TMS TCK TDO NRST
VDD
VDD
GND GND GND GND GND
GND
GND GND GND
VDD VDD VDD
VDD
VDD
VDD
VDD
VDD
VDD
R5 10K
R12 10K
R9 470R
U7A 74LV14D
1
2
+
C26 470n TANT
SW3
SWITCH HORIZ
R6 10K
R8 10K
U7B 74LV14D
3
4
U7C 74LV14D
5
6
U7D 74LV14D
9
8
U7E 74LV14D
11
10
U7F 74LV14D
13
12
R10 470R
R11
470R
R13 10K
R14 10K
+
C27 470n TANT
+
C25 470n TANT
U8
MAX6315
US
31
D3
-T
1
2
3
4
GND
RESET
MR
VDD
SW4
SWITCH HORIZ
SW5
SWITCH HORIZ
SW2
SWITCH HORIZ
R7 10K
J2 CON20AP
1 3 5 7 9
11 13 15 17 19
2 4 6 8 10 12 14 16 18 20
+ + + + + + + + + +
+ + + + + + + + + +
C7 10pF
C10 10nF
C18 22pF
C8 10pF
C9 10pF
C16 10pF
C17 10pF
C11 10nF
C12 10nF
C13 10nF
C19 10nF
C20 10nF
C21 10nF
C14 10nF
C15 10nF
C22 10nF
C23 10nF
C24 100n
WL1 WIRE LINK
R21
0R
R22
10K
R23
0R
R24
10K
R25
0R
R26
10K
D1A TRI-LED
2
1
D1B TRI-LED
4
3
D1C TRI-LED
6
5
TCK
TMS
NRST
P12/FIQ_ONB
IRQ0_O
NB
TDO
TIOB1_ONB
TIOA0 TIOA1 TIOB0
TDI