LE940B6 HW User Guide
Rev. 2.02
Page 83 of 111
2020-01-10
General Purpose I/O
The general-purpose I/O pads can be configured to act in three different ways:
•
Input
•
Output
•
Alternative function (internally controlled)
Input pads can only be read, reporting digital values (high / low) present at the reading
time. Output pads can only be written or queried and set values on the pad output.
Alternative function can be internally controlled by LE940B6 firmware and act according to
the implementation.
The type of GPIO can be set to Open-drain signaling; default type is CMOS mode.
Table 32: GPIOs
PAD
Signal
I/O
Function
Type
Drive
Strength
F9
GPIO_01
I/O
Configurable GPIO
CMOS 1.8V
1 mA
E10
GPIO_02
I/O
Configurable GPIO
CMOS 1.8V
1 mA
F11
GPIO_03
I/O
Configurable GPIO
CMOS 1.8V
3 mA
E12
GPIO_04
I/O
Configurable GPIO
CMOS 1.8V
3 mA
F13
GPIO_05
I/O
Configurable GPIO
CMOS 1.8V
1 mA
E14
GPIO_06
I/O
Configurable GPIO
CMOS 1.8V
3 mA
R18
GPIO_07
I/O
Configurable GPIO
CMOS 1.8V
3 mA
S19
GPIO_08
I/O
Configurable GPIO
CMOS 1.8V
3 mA
U19
GPIO_09
I/O
Configurable GPIO
CMOS 1.8V
3 mA
W19
GPIO_10
I/O
Configurable GPIO
CMOS 1.8V
3 mA
L18
GPIO_11
I/O
Configurable GPIO
CMOS 1.8V
3 mA
J18
GPIO_12
I/O
Configurable GPIO
CMOS 1.8V
3 mA
AN4
GPIO_20
I/O
Configurable GPIO
CMOS 1.8V
3 mA
H1
GPIO_21
I/O
Configurable GPIO
CMOS 1.8V
3 mA
K1
GPIO_22
I/O
Configurable GPIO
CMOS 1.8V
4 mA
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