Jtag/Ice; Pwm Buzzer; Sd/Mmc Card - Atmel SAM3N-EK User Manual

Evaluation Kit Hardware
Figure 4-7.
4.3.9

JTAG/ICE

A standard 20-pin JTAG/ICE connector is implemented on the SAM3N-EK for the connection of a com-
patible ARM JTAG emulator interface, such as the SAM-ICE from Segger.
Notes: 1. The NRST signal is connected to BP1 system button. The 0 ohm resistor R30 may be
Figure 4-8.
4.3.10

PWM Buzzer

A small, magnetic audio transducer connects through a MOSFET to PWM, allowing a range of options
for generating simple and complex tones.
Figure 4-9.
4.3.11

SD/MMC Card

The SAM3N has a high-speed 4-bit multimedia MMC interface, which is connected to a 4-bit SD/MMC
micro card slot featuring a card detection switch.
4-6
11080C–ATARM–30-Mar-11
Backlight
R17 R17
0R 0R
PC13
B1 B1
+3V3 BN03K314S300R BN03K314S300R
removed in order to isolate the JTAG port from this system reset signal.
2. The TDO pin is in input mode with the pull-up resistor disabled when the Cortex M3 is
not in debug mode. To avoid current consumption on VDDIO and/or VDDCORE due to
floating input, the internal pull-up resistor corresponding to this PIO line must be
enabled.
JTAG Connector
PB[0..14]
PB4
PB6
PB7
PB5
NRST
PWM Buzzer
PA1
R58 R58
Q2 Q2
10K 10K
IRLML2502 IRLML2502
DGND
+3V3
R16 R16
MN5 MN5
47K 47K
AAT3193IJQ-1-T1 AAT3193IJQ-1-T1
6
EN/SET C+
5
IN C-
7
RSET OUT
C33 C33
R20 R20
4.7uF 4.7uF
19.1k, 1% 19.1k, 1%
D1
D2
8
GND D3
LCD BACKLIGHT
DGND
+3V3
R22 R22 R23 R23 R24 R24 R25 R25 R26 R26
100K 100K 100K 100K 100K 100K 100K 100K 100K 100K
R30 R30 0R 0R
ICE INTERFACE
B2 B2
+3V3
BN03K314S300R BN03K314S300R
1
D5 D5
R59 R59
22R 22R
2 3
4
C32 C32
1uF 1uF
3
2 LED_A
C34 C34
1
LED_K1 1uF 1uF
10
LED_K2
9
LED_K3
DGND
J2 J2
1 2
VTref Vsupply
3 4
nTRST GND1
5 6
TDI GND2
7 8
TMS GND3
9 10
TCK GND4
11 12
RTCK GND5
13 14
TDO GND6
15 16
nSRST GND7
17 18
DBGRQ GND8
19 20
DBGACK GND9
DGND
MN9 MN9
SMD-050020F-03640 SMD-050020F-03640
1
+
2
-
SAM3N-EK Development Board User Guide