Gpi/O Connector - Seco SBC Series User Manual

3.3.15 GPI/O connector

Interfaced to the I2C interface #3 coming from the Intel
General Purpose I/O pins. The device allows for a wide configurability of GPI/O pins, since it can offer programmable output drive strength, latchable inputs,
programmable pull-up/pull-down resistors, maskable interrupt, interrupt status register, programmable open-drain or push-pull outputs.
GPI/O connector CN32
Pin Signal Pin Signal
1 VDD_GPIO 6 GPIO_4
2 GPIO_0 7 GPIO_5
3 GPIO_1 8 GPIO_6
4 GPIO_2 9 GPIO_7
5 GPIO_3 10 GND
+3.3V_A or +5V_A by closing (short-circuiting) breakers BR5 or BR6, respectively (only one breaker at a time, otherwise there will be a short circuit between the
two different voltages).
Please refer to the figure on the right for an indication of the placement on the P.CB of the two breakers mentioned above (they are located on
the top side, near connector CN32).
Please take care of closing only one breaker per voltage rail (i.e., BR5 or BR6), otherwise there will be short circuits between the main power
rails of the board.
Upon specific request, the board can be supplied configured with the desired voltages already set. Please contact your Sales Representative
for details about this.
Please be aware that GPI/O connector CN32 is available only on boards with PCB revision C or higher.
SBC-A80-eNUC
SBC-A80-eNUC User Manual - Rev. First Edition: 1.0 - Last Edition: 1.2 - Author: S.B. - Reviewed by G.G Copyright © 2017 SECO S.r.l.
®
Braswell family of SoCs, there is a device, NXP Semiconductors PCAL6408A, which is able to provide 8
The device acts as a slave according to I2C protocol, and can be addressed at address 0100000 binary.
It is possible to select the voltage reference level of these GPI/Os, which can be adjusted to be referred to
+3.3V_A or to +5V_A voltage.
Access to these extended I/O comes through a10-pin single line SMT connector, type
MOLEX 53261-1071 or equivalent, with pinout shown in the table on the left.
Mating connector: MOLEX 51021-1000 receptacle with MOLEX 50079-8000 female
crimp terminals.
GPIO_[0..7]: I/O Expander Port P Input/Output [0..7]
VDD_GPIO: Supply voltage for I/O Expander Port P. This voltage can be regulated to be connected to
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