User's Manual l TQMa6x & TQMa6xP UM 0403 l © 2019, TQ-Systems GmbH
Page 27
3.2.5.19
SJC
The i.MX6 can operate in two different JTAG modes. The pin JTAG_MOD defines the mode.
The following table shows the existing modes as well as the mode set on the TQMa6x.
Table 38:
JTAG modes
JTAG_MOD
Name
Remark
0 (default)
Daisy Chain All
For common SW debug (High speed and series production)
1
SJC only
IEEE 1149.1 JTAG compliant mode
The following table shows the signals used by the JTAG interface.
Table 39:
Signals JTAG
Signal name
Direction
i.MX6 ball
TQMa6x
Remark
JTAG_TCK
I
H5
X1–77
i.MX6-internal PU 47 kΩ
JTAG_TMS
I
C3
X1–69
i.MX6-internal PU 47 kΩ
JTAG_TDI
I
G5
X1–71
i.MX6-internal PU 47 kΩ
JTAG_TDO
O
G6
X1–73
i.MX6-internal keeper
JTAG_TRST#
I
C2
X1–67
i.MX6-internal PU 47 kΩ
JTAG_MOD
I
H6
X1–75
4.7 kΩ PD on i.MX6-internal 100 kΩ PU
3.2.5.20
S/PDIF
The i.MX6 provides an S/PDIF interface with transmit and receive functionality.
The following table shows the signals used by the S/PDIF interface.
Table 40:
Signals S/PDIF
Signal name
Direction
i.MX6 ball
TQMa6x
SPDIF_IN
I
W23
X1–158
SPDIF_OUT
O
W21
X1–156
3.2.5.21
Tamper
The i.MX6 provides protection against unauthorised opening or manipulation of a device by tamper detection.
The pin TAMPER is available at the connectors for this purpose.
The following table shows the signal used.
Table 41:
Signal TAMPER
Signal name
Direction
i.MX6 ball
TQMa6x
TAMPER
I
E11
X3–39
Details about the behaviour of the TAMPER pin are to be taken from the NXP Reference Manuals (4), (5), and (6).
