ME310G1 Hardware Design Guide
1VV0301588 Rev. 12
Page 49 of 96
2021-06-14
General purpose I/O
The ME310G1 module is provided by a set of Configurable Digital Input / Output pins
(CMOS 1.8V). Input pads can only be read; they report the digital value (high or low)
present on the pad at the read time of. The Output pads can only be written or queried
and set the value of the pad output.
An alternate function pad is internally controlled by the ME310G1 firmware and acts
depending on the implemented function.
The following table shows the available GPIO on the ME310G1:
PAD
Signal
I/O
Drive Strength
Default State
NOTE
V11
GPIO_01
I/O
1 mA
INPUT - PD (100K)
Alternate function DTR
INPUT - PU (100K)
V13
GPIO_02
I/O
1 mA
INPUT - PD (100K)
Alternate function
RING
D7
GPIO_03
I/O
1 mA
INPUT - PD (100K)
D9
GPIO_04
I/O
1 mA
INPUT - PD (100K)
D11
GPIO_05
I/O
1 mA
INPUT - PD (100K)
D13
GPIO_06
I/O
1 mA
INPUT - PD (100K)
Table 30: ME310G1 available GPIO
Using a GPIO as INPUT
The GPIO pads, when used as inputs, can be connected to another device’s digital output
and report its status, provided that this device has interface levels compatible with the
1.8V CMOS levels of the GPIO.
Note: In order to avoid a back powering, it is recommended to avoid
having any HIGH logic level signal applied to the digital pins of the
ME310G1 when the module is powered off or during an ON/OFF
transition.
Using a GPIO as OUTPUT
The GPIO pads, when used as outputs, can drive 1.8V CMOS digital devices or compatible
hardware. When set as outputs, the pads have a push-pull output and therefore the pull-
up resistor may be omitted.
Содержание ME310G1-W1
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