16
ATSAM4C-EK [USER GUIDE]
11251A–ATARM–16-Dec-13
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 USB connector Micro AB.
Figure 3-14.
DBGU/USB Bridge Schematic
3.7
Extend Interfaces
The SAMAC-EK embeds two connectors to interface Atmel IEEE 802.15.4-compliant wireless transceivers for ZigBee
®
-
based applications.
Features:
Atmel RZ600 module
Atmel REB233-XPRO module
3.7.1
RZ600 Interface
The RZ600 interface connects with Atmel modules used for ZigBee communication platforms that are equipped
with a 10-pin HE10 male connector.
Figure 3-15.
RZ600 Interface Schematic
.
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
Table 3-4.
RZ600 HE10 Pin Functions
Function
Pin
Pin
Function
Reset
1
2
IRQ0
Interrupt Request
3
4
SLP_TR
SPI Chip Select
5
6
SPI MOSI
SPI MISO
7
8
SPI CLK
Power Ground
9
10
Power Supply
(SPI0_NPCS0)
(SPI0_MISO)
(SPI0_MOSI)
(SPI0_SPCK)
ZigBee
R70 to R73 should be close to SAM4C.
(ZB_IRQ1)
(ZB_RSTN)
(ZB_IRQ0)
(ZB_SLPTR)
PA7
PA11
PA5
PA6
PA8
PA12
PA17
PA18
VDDMAIN
R72
33R
R67
0R
C74
2.2nF
L4
220
Ω
at 100MHz
R70
0R
JP18
C75
2.2µF
R66
0R
J7
J7
1
2
3
4
5
6
7
8
9
10
R68
0R
R71
33R
R73
33R
R69
0R
C73
18pF
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