(十一) Gpio Expansion Headers - Alinx AX7102 User Manual

DS1302 Pin Assignment.
Net Name
RTC_SCLK
RTC_DATA
RTC_RESET
(十一) GPIO Expansion Headers
The AX7102 Board provides 40-pin expansion header. The header connects
directly to 34 pins of the Artix-7 FPGA, and also provides +5.0V, +3.3V and GND.
The FPGA IO pins on the expansion headers is connected to a 33ohm resistor
for protection against high or low voltage level. Figure 3-11-1 and Figure
3-11-3 shows the connection circuitry of these two 40-pin expansion headers.
Figure 3-11-1 shows the connection of J4 expansion header
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Figure 3-10-2 RTC Circuit on Board
AX7102 User Manual
FPGA PIN
B15
E16
D16
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