Card information
The
ETHERNET MCU card
is shown on
Figure 4-1.
It contains
PIC32MX795F512L
microcontroller with on-chip peripherals and is a great choice for both beginners and
professionals.
After testing and building the final program, this card can also be taken out of the board socket and used in your final device.
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PIC32MX795F512L
has
80MHz
maximum frequency,
512K bytes
of
program memory (flash),
128K bytes
of data memory. It has integrated
Ethernet controller, USB
(OTG, Host, Device), 85 General purpose
I/O pins,
5
16-bit timers,
16 Analog Input pins (ADC), 6
UARTs,
internal 8 MHz and
32kHz oscillators, internal Real time clock (RTC), 5
I2C,
4
SPI
and 2
CAN
controllers. It also contains 3
analog comparators
and two programming and
debugging interfaces.
8MHz crystal oscillator.
We carefully chose the most convenient crystal
value that provides clock frequency which can be used directly, or with the PLL
multipliers to create higher MCU clock value. MCU card also contains 32.768 kHz
crystal oscillator which provides external clock waveform for RTCC module.
USB communications lines.
These two jumpers, when in USB position, connect
D+ and D- lines of the on-board USB connector with RG2 and RG3 microcontroller
pins. Since
PIC32MX795F512L
supports USB, jumpers are in USB position.
Ethernet transceiver.
This MCU card contains single-chip Ethernet physical
(PHY) layer transceiver which provides additional Ethernet functionality to
PIC32MX795F512L
controller
25MHz crystal oscillator.
This crystal oscillator is connected to external
Ethernet module.
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Figure 4-1: MCU card with PIC32MX795F512L
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