Table 27. General Purpose Input/Output pin termination checklist (continued)
Signal Name
IO type
Used
Not Used
Completed
GPIO2_[25:27]
IO
The functionality of these signals
is determined by the
RCW[IFC_GRP_A_BASE] field in
the reset configuration word.
GPIO3_[0:1]
IO
The functionality of these signals
is determined by the RCW[EM1]
field in the reset configuration
word.
For all GPIOx pins: When
programmed as outputs, no
termination is required.
GPIO3_[2:14]
IO
The functionality of these signals
is determined by the RCW[EC1]
field in the reset configuration
word.
GPIO3_[15:27]
IO
The functionality of these signals
is determined by the RCW[EC2]
field in the reset configuration
word.
GPIO4_[0:1]
IO
The functionality of these signals
is determined by the RCW[EM2]
field in the reset configuration
word.
For all GPIOx pins: When
programmed as outputs, no
termination is required.
GPIO4_[2:3]
IO
The functionality of these signals
is determined by the
RCW[IIC2_EXT] field in the reset
configuration word.
GPIO4_[10:11]
IO
The functionality of these signals
is determined by the IIC3_SCL
and IIC3_SDA fields in
SCFG_RCWPMUXCR0
respectively.
GPIO4_[12:13]
IO
The functionality of these signals
is determined by the IIC4_SCL
and IIC4_SDA fields in
SCFG_RCWPMUXCR0
respectively.
GPIO4_[29]
IO
The functionality of these signals
is determined by the
RCW[USB_DRVVBUS] field in the
reset configuration word.
GPIO4_[30]
IO
The functionality of these signals
is determined by the
RCW[USB_PWRFAULT] fields in
the reset configuration word.
Interface recommendations
QorIQ LS1046A Design Checklist , Rev. 2, 06/2020
40
NXP Semiconductors
