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Board Description
4-10
AT91SAM9M10-G45-EK User Guide
6495B–ATARM–21-Apr-10
4.2.6
Debug Interface
4.2.6.1
JTAG/ICE
Software debug is accessed by a standard 20-pin JTAG connection. This allows connection to a stan-
dard USB-to-JTAG in-circuit emulator.
Figure 4-7.
JTAG Interface
4.2.6.2
DBGU Com Port
This UART is connected to the DB-9 male socket through an RS-232 Transceiver (TXD and RXD only).
Figure 4-8.
DBGU Com Port
TDI
RTCK
TDO
TM
S
TCK
NTR
S
T
NR
S
T
3
V
3
3
V
3
3
V
3
NTR
S
T
RTCK
TDI
TM
S
TCK
TDO
NR
S
T
ICE INTERFACE
R92
0R
R92
0R
J1
3
HT
S
T-110-01-
S
M-D
J1
3
HT
S
T-110-01-
S
M-D
1
2
3
4
5
6
7
8
9
10
11
12
1
3
15
17
19
14
16
1
8
20
R94
0R
DNP
R94
0R
DNP
R9
3
0R
R9
3
0R
R91
0R
DNP
R91
0R
DNP
RR4
3
100k
RR4
3
100k
1
2
3
4
5
6
7
8
3
V
3
3
V
3
PB1
3
PB12
S
ERIAL DEBUG PORT
C1+
V+
VCC
C1-
C2+
C2-
V-
T
T
R
R
GND
MN15
ADM
3
202ARNZ
C1+
V+
VCC
C1-
C2+
C2-
V-
GND
MN15
ADM
3
202ARNZ
1
16
3
4
5
15
11
10
12
9
8
1
3
7
14
2
6
R
8
7
100k
R
8
7
100k
C159
100n
C159
100n
R90
0R
R90
0R
C16
3
100n
C16
3
100n
C157
100n
C157
100n
R
88
100k
R
88
100k
C15
8
100n
C15
8
100n
J10
J10
5
4
3
2
1
9
8
7
6
10
11
C165
100n
C165
100n