ZHCSPJ8B December 2021 – December 2023 AM2732 , AM2732-Q1
PRODUCTION DATA
All digital IO pins of the device (except NERROR IN, NERROR_OUT, and WARM_RESET) are non-failsafe; hence, care needs to be taken that they are not driven externally without the VIO supply being present to the device
The GPIO state during the power supply ramp is not ensured. In case the GPIO is used in the application where the state of the GPIO is critical, even when NRESET is low, a tri-state buffer should be used to isolate the GPIO output from any attached device. An additional pull resister should be used to define the required state in the application. The NRESET signal could be used to control the output enable (OE) of the tri-state buffer.
Many signals are available on multiple pins, according to the software configuration of the pin multiplexing options.
The following list describes the
column headers:
Signal names and descriptions provided in each Signal Descriptions table, represent the pin multiplexed signal function implemented at the pin and selected via PADCONFIG registers. Some device subsystems provide an additional layer of multiplexing for signal functions that are not described in these tables. For more information on secondary multiplexed signal functions, see the respective peripheral chapter of the device TRM.
I = Input
O = Output
IO = Input, Output, or simultaneously Input and Output
IOD = Input, Output, or simultaneously Input and Output, with open-drain output function
IOZ = Input, Output, or simultaneously Input and Output, with three-state output function
OZ = Output with three-state output function
A = Analog
PWR = Power
GND = Ground
For more information on the I/O cell configurations, see the Pad Configuration Registers section within the Device Configuration chapter of the device TRM.