SAM4E-EK User Guide
42067A
−
SAM4E
−
01/2013
14
4.3.10 CAN
The CAN controller provides all the features required to implement the serial communication protocol CAN defined by
Robert Bosch GmbH, the CAN specification as referred to by ISO/11898A (2.0 Part A and 2.0 Part B) for high speeds
and ISO/11519-2 for low speeds. The CAN Controller is able to handle all types of frames (Data, Remote, Error and
Overload) and achieves a bit rate of 1Mbit/sec.
The Atmel SAM4E has two CAN Controller with eight Mailboxes.
SAM4E-EK connects the CAN0 and CAN1 bus to the CAN transceiver SN65HVD234 (MN11 and MN12).
The extension connector (J13 and J14) type is RJ12 female socket.
Figure 4-9. CAN block.
R140
10K
(CANRX0)
R134
10K
C96
100nF
(CANTX0RS)
PE0
J13
CAN RJ12
1
1
2
2
3
3
4
4
5
5
6
6
+
C95
10uF
R135
0R
PE1
PB3
+3V3
R138
0R
(CANRX0EN)
R139
0R
+3V3
Rs
D
EN
R
CANH
CANL
VCC
GND
MN11
SN65HVD234
2
3
7
6
4
1
5
8
(CANTX0)
R137
120R
JP28
R151
10K
(CANRX1)
R141
10K
C99
100nF
(CANTX1RS)
PE2
PC15
J14
CAN RJ12
1
1
2
2
3
3
4
4
5
5
6
6
+
C98
10uF
R142
0R
PE3
PC12
R143
0R
R149
0R
+3V3
(CANRX1EN)
R150
0R
+3V3
Rs
D
EN
R
CANH
CANL
VCC
GND
MN12
SN65HVD234
2
3
7
6
4
1
5
8
(CANTX1)
CAN1
R148
120R
JP29
CAN0
PB2
J37-6
4.3.11 Display interface
The SAM4E-EK carries a TFT transmissive LCD module with touch panel, FTM280C34D. Its integrated driver IC is
ILI9325. The LCD display area is 2.8 inches diagonally measured, with a native resolution of 240 x 320 dots.
4.3.11.1
LCD module
The LCD module gets reset from the NRST signal. As explained, this NRST is shared with the JTAG port and the push-
button BP1. The LCD chip select signal is connected to NCS1; the jumper JP8 can disconnect it so that this PIO line is
available for other custom usage.
The SAM4E16 communicates with the LCD through PIOC where an 8-bit parallel “8080-like” protocol data bus has to
be implemented in software.
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