User manual

PICDEM.net™ 2 Development Board User’s Guide
DS51623D-page 12  2011 Microchip Technology Inc.
1.4 THE PICDEM.net 2 DEVELOPMENT BOARD
The PICDEM.net 2 Development Board has all the features to begin developing
Internet connectivity applications over an Ethernet connection. The preprogrammed
firmware allows users to begin evaluating the board right out of the box with no
additional programming or configuration. All that is required to begin exploring the
board is a network-enabled computer with an Ethernet adapter and Internet browser
software. (See Chapter 2. “Getting Started with the PICDEM.net 2 Development
Board” for more specific information.)
FIGURE 1-1: PICDEM.net™ 2 DEVELOPMENT BOARD LAYOUT
Features on the PICDEM.net 2 Development Board include:
1. MICROCONTROLLER: A Microchip PIC18F97J60 microcontroller with built-in
Ethernet controller and transceiver is directly installed on the board (U3). The
device is clocked at 41.67 MHz and has been preprogrammed with demonstra-
tion firmware from the Microchip TCP/IP Stack. Jumpers, JP15 and JP3, can be
used to measure the current consumption of the microcontroller.
2. ETHERNET CONTROLLER: In addition to the PIC18F97J60, the PICDEM.net 2
Development Board also features a Microchip ENC28J60 stand-alone Ethernet
controller. This device provides Ethernet connectivity for microcontroller-based
applications using a standard SPI interface.
3. MEMORY: A Microchip 25LC256 serial EEPROM (U4) provides 256 Kbits
(32 Kbytes) of storage for both web pages and nonvolatile configuration options.
The 25LC256 is programmable via an SPI interface.
4. LCD DISPLAY: A two-line by 16-character dot matrix display shows diagnostic
and error messages with the factory programmed firmware. It may be used for
other applications with appropriate reprogramming.
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PICDEM.net™ 2
Development Board
PICtail™
Daughter
Board