User's Manual l TQMa6x & TQMa6xP UM 0403 l © 2019, TQ-Systems GmbH
Page 20
3.2.5.6
FLEXCAN
The i.MX6 provides two integrated CAN controllers. Both pairs of signals are available at the connectors.
The drivers required have to be implemented on the carrier board.
The following table shows the signals used by the CAN interface.
Table 25:
Signals FLEXCAN
Signal name
Direction
i.MX6 ball
TQMa6x
CAN1_TX
O
W6
X1–96
CAN1_RX
I
W4
X1–94
CAN2_TX
O
T6
X1–92
CAN2_RX
I
V5
X1–90
3.2.5.7
GPIO
Beside their interface function, most of the i.MX6 pins can also be used as GPIO.
All these GPIOs can trigger an interrupt. Details are to be taken from the NXP Reference Manuals (4), (5), and (6).
The electrical characteristics of the GPIOs are to be taken from the NXP Data Sheets (1), (2), and (3).
In addition, different pins are already marked as GPIO and are available at the connectors.
The following table shows the GPIO signals used.
Table 26:
Signals GPIO
Signal name
Direction
i.MX6 ball
TQMa6x
Remark
GPIO1_IO5
I/O
R4
X1–86
Only on Variant “C”, see Illustration 11
GPIO1_IO30
I/O
U20
X1–149
–
GPIO1_IO29
I/O
W20
X1–151
–
GPIO1_IO28
I/O
V21
X1–153
–
GPIO1_IO26
I/O
W22
X1–154
–
GPIO1_IO25
I/O
U21
X1–155
–
GPIO1_IO21
I/O
F18
X1–106
–
GPIO1_IO8
I/O
R5
X1–157
–
GPIO1_IO7
I/O
R3
X1–152
–
GPIO2_IO25
I/O
J24
X2–81
–
GPIO2_IO24
I/O
J23
X2–83
–
GPIO2_IO23
I/O
H24
X2–84
–
GPIO2_IO11
I/O
A20
X1–23
–
GPIO2_IO8
I/O
D18
X1–21
–
GPIO2_IO3
I/O
D17
X1–19
–
GPIO2_IO2
I/O
F16
X1–17
–
GPIO2_IO1
I/O
C17
X1–15
Optional reset source for SPI NOR flash, see 3.2.2.3
GPIO2_IO0
I/O
A18
X1–13
–
GPIO3_IO29
I/O
J19
X2–77
–
GPIO3_IO28
I/O
G23
X2–78
–
GPIO3_IO27
I/O
E25
X2–75
–
GPIO3_IO26
I/O
E24
X2–76
–
GPIO3_IO23
I/O
D25
X2–69
–
GPIO3_IO20
I/O
G20
X2–68
–
GPIO4_IO9
I/O
U6
X2–58
–
GPIO4_IO8
I/O
U7
X2–57
–
GPIO4_IO7
I/O
V6
X2–55
–
GPIO4_IO6
I/O
W5
X1–74
–
GPIO4_IO5
I/O
P5
X1–113
–
GPIO5_IO21
I/O
M2
X1–84
–
GPIO5_IO20
I/O
P3
X1–111
–
GPIO5_IO18
I/O
P1
X1–82
–
GPIO6_IO31
I/O
N22
X2–126
–
GPIO6_IO16
I/O
D16
X2–94
–
GPIO6_IO14
I/O
C16
X1–31
–
GPIO6_IO11
I/O
F15
X1–29
–
GPIO6_IO8
I/O
A16
X1–27
–
GPIO6_IO7
I/O
C15
X1–25
–
GPIO7_IO13
I/O
P6
X1–148
–
GPIO7_IO12
I/O
R1
X1–72
–
GPIO7_IO11
I/O
R2
X1–150
–
