Hardware
2017 Microchip Technology Inc.
DS70005311A-page 25
2.1.8
LEDs
The LEDs, RH0 through RH2, are connected to PORTH of the processor. The LATH
pins are set high to light the LEDs.
2.1.9
Oscillator Options
A 24 MHz oscillator circuit is connected to the on-board microcontroller and this oscillator
circuit functions as the controller’s primary oscillator. Depending on which is populated
on the starter kit board, a 24 MHz crystal may be used instead of the 24 MHz oscillator
circuit.
Use of an external crystal is required to develop USB applications. The USB-specification
dictates a frequency tolerance of ±0.25% for high speed, and non-USB applications can
use the internal oscillators.
The starter kit also has provisions for an external secondary 32 kHz oscillator; however,
it is not populated. A suitable oscillator, ECS-3X8, can be obtained from Digi-Key:
P/N-X801-ND CMR200TB32.768KDZFTR.
The PIC24FJ256GB106 is independently clocked and has its own 12 MHz crystal.
2.1.10
168-pin Modular Expansion Connector
The PIC32MZ DA Family Starter Kit has been designed with a 168-pin modular
expansion interface, which allows the board to provide basic generic functionality
and easy extendability to new technologies as they become available. Refer to
Table 2-1
for starter kit connector part numbers.
2.1.11
Ethernet PHY
The Microchip LAN8740A PHY Daughter Board is populated with a low-power, small-
footprint, 10/100 Fast Ethernet LAN8740A PHY, which features Energy Efficient
Ethernet (IEEE 802.3az) and Wake-on-LAN functionality. This daughter board is
designed for easy development of RMII Ethernet control applications when it is
connected into a compatible PIC32 starter kit.
To use a different Ethernet PHY, other than what is offered, visit the microchipDIRECT
website (
www.microchipdirect.com
) for a list of alternate options.
2.1.12
USB-to-UART/I
2
C Communication
To facilitate application debug and development, a MCP2221 USB-to-UART/I
2
C device
(U1) is available. The MCP2221 creates a virtual COM port on the personal computer
when a mini-USB cable is connected between J11 and the host computer. To download
the driver for the MCP2221, visit the MCP2221 product page
(
www.microchip.com/MCP2221
).
TABLE 2-1:
STARTER KIT CONNECTOR PART NUMBERS
Connector
HIROSE Electric PN
Starter Kit Connector
FX10A-168P-SV1(71)
Application Board Connector
FX10A-168S-SV
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
Downloaded from
