HW User Guide
1vv0301018 Rev. 15
Page
47
of
72
2019-01-07
11.
GENERAL PURPOSE I/O
The general purpose I/O pads can be configured to act in three different ways:
•
input
•
output
•
alternate function (internally controlled)
Input pads can be read; they report the digital value (high or low) present on the pad at
the read time .
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 GL865 V3/V3.1 firmware and acts
depending on the function implemented.
For Logic levels please refer to chapter 8.
The following table shows the available GPIO on the GL865 V3/V3.1.
Pin
Signal
I/O
Function
Type
Input /
output
current
Default
State
ON_OFF
state
State
during
Reset
Note
42 GPIO_01
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
DVI_WA0
41 GPIO_02
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
JDR and DVI_RX
40 GPIO_03
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
DVI_TX
39 GPIO_04
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
TX Disable and
DVI_CLK
29 GPIO_05
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
RFTXMON
28 GPIO_06
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
ALARM
27 GPIO_07
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
BUZZER
26 GPIO_08
I/O
Configurable GPIO
CMOS
1.8V
1uA/1mA
INPUT
0
0
Alternate function
STAT_LED
WARNING:
During power up the GPIOs may be subject to transient glitches.
Содержание GL865 V3
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