Can bus, Can bus signals, Reference schematic – IBASE SMARC-EVK1 User Manual
Page 44: Smarc evaluation kit, Can1_tx o, Can1_rx i, Can2_tx, Can2_rx, Icmos 3.3v can2 receive input
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SMARC Evaluation Kit
4.2.13. CAN Bus
CAN Bus Signals
Pin
Signal Name
I/O
Type
Power Rail
Description
P143
CAN1_TX
O
CMOS
3.3V
CAN1 Transmit output
P144
CAN1_RX
I
CMOS
3.3V
CAN1 Receive input
P145
CAN2_TX
O
CMOS
3.3V
CAN2 Transmit output
P146
CAN2_RX
I
CMOS
3.3V
CAN2 Receive input
Reference Schematic
GND_ISO_B
+5V_ISO_B
CAN_DL_B
CAN_DH_B
U5
ADM3053BRWZ-REEL7
GND11
1
NC
2
GND12
3
RxD
4
TxD
5
VIO
6
GND13
7
VCC
8
GND14
9
GND15
10
GND21
11
VISOOUT
12
GND22
13
VREF
14
CANL
15
GND23
16
CANH
17
RS
18
VISOIN
19
GND24
20
R28
10K/4
CAN BUS2
RS4
Short PAD8
Isolation >5mm
CAN_DH_B
C45
10UF/16V/6
GND_ISO_B
R29
120/6.X
C43
10UF/16V/6
C44
0.1UF/25V/4
GND_SHIELD2
C40
10UF/16V/6
C39
0.1UF/25V/4
C46
0.1UF/25V/4
GND_ISO_B
+5V_ISO_B
+5V_VCC
+3.3V_VCC
CAN_DL_B
C50
10UF/16V/6
C49
0.1UF/25V/4
GND_ISO_B
CAN2_RX
13
CAN2_TX
13
GND_ISO_A
+5V_ISO_A
CAN_DL_A
CAN_DH_A
U4
ADM3053BRWZ-REEL7
GND11
1
NC
2
GND12
3
RxD
4
TxD
5
VIO
6
GND13
7
VCC
8
GND14
9
GND15
10
GND21
11
VISOOUT
12
GND22
13
VREF
14
CANL
15
GND23
16
CANH
17
RS
18
VISOIN
19
GND24
20
R26
10K/4
Isolation >5mm
CAN BUS 1
RS3
Short PAD8
CAN_DH_A
C35
10UF/16V/6
R27
120/6/X
GND_ISO_A
C33
10UF/16V/6
C34
0.1UF/25V/4
C32
10UF/16V/6
C31
0.1UF/25V/4
GND_SHIELD1
C36
0.1UF/25V/4
GND_ISO_A
+5V_ISO_A
+5V_VCC
+3.3V_VCC
C38
10UF/16V/6
CAN_DL_A
C37
0.1UF/25V/4
CAN1_TX
13
GND_ISO_A
CAN1_RX
13
J2
E-CALL_0110-2620040
1
1
2
2
3
3
4
4
J4
E-CALL_0110-2620040
1
1
2
2
3
3
4
4
GND_ISO_B
GND_SHIELD2
CAN_DH_B
CAN_DL_B
GND_ISO_A
GND_SHIELD1
CAN_DH_A
CAN_DL_A