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SAM4C32-EK [USER GUIDE]
Atmel-11253A-ATARM-SAM4C32-EK-UserGuide_17-Sep-14
15
3.6
Debug Interfaces
3.6.1
JTAG/ICE
The SAM4C32-EK includes a JTAG interface port to provide debug level access to the system-on-chip. The JTAG
port is a 20-pin, dual-row, 0.1-inch male connector. This port provides the required interface for in-circuit emulators
such as the ARM Multi-ICE
®
and Atmel SAM-ICE
.
Features:
One HE10 20-pin male connector
Required resistors
Figure 3-13.
JTAG/ICE Interface Schematic
3.6.2
UART/USB Bridge Interface
The UART is connected to an interface USB through an FTDI FT232R (TTL to USB converter) device. RX and TX
DBGU only are connected to the Micro AB USB connector.
Figure 3-14.
DBGU/USB Bridge Schematic
Do Not Populate
R146 0R/DNP
(NRST)
(TMS)
(TCK)
(TDO)
JTAG/ICE INTERFACE
(TDI)
100K
Ω
TMP2
PB0
PB2
NRST
PB3
PB1
PB27
VDDIN
PB1
{3,4}
R138
R137
R136
J11
1
2
3
4
5
6
7
8
9
10
11
12
13
15
17
19
14
16
18
20
BP6
1
4
2
3
R134
R149
100K
Ω
R148
33
Ω
JP24
JP24
1
2
3
R135
100K
Ω
100K
Ω
100K
Ω
100K
Ω
DBGU/USB Bridge
(RXD0)
(TXD0)
PB4
PB5
FGND
3V3OUT
3V3OUT
5V
3V3OUT
USB5V
D6
Green
U8
FT232RL
FT232RL
TXD
1
DTR#
2
RTS#
3
VCCIO
4
RXD
5
RI#
6
GND1
7
NC1
8
DSR#
9
DCD#
10
CTS#
11
CBUS4
12
CBUS2
13
CBUS3
14
USBDP
15
USBDM
16
3V3OUT
17
GND2
18
RESET#
19
VCC
20
GND3
21
CBUS1
22
CBUS0
23
NC2
24
AGND
25
TEST
26
OSCI
27
OSCO
28
R58
0R
R57
0R
R60
4.7K/DNP
R59
0R
C72
100nF
C66
10nF
C71
47pF
R64
10K/DNP
R65
0R
C64
4.7µF/16V
C70
47pF
C68
100nF
C68
R56 0R
R62 470R
5V
D-
D+
ID
G
J6
USB Micro AB
5V
D-
D+
ID
G
1
2
3
4
7
5
6
8
9
10
11
L3
220
Ω
at 100MHz
1
2
D7
Red
R61 470R
6
R63 0R
C67
100nF
Do Not Populate
Do Not Populate