User manual

XLP 8-Bit Development Board User’s Guide
DS41581A-page 24  2011 Microchip Technology Inc.
• Battery Powered – The user has two options available for using external batteries.
- Populating jumper J9 allows the user the option of selecting either two AAA
batteries or a 3V coin battery.
- Populating jumper J12 allows the user to choose one of the following options:
a) one 3V coin battery by populating jumper pins [1-2]
b) two AAA batteries by populating pins [2-3].
The power LED does not illuminate in this configuration.
• Harvester – The user also has an option to use any of Microchip’s Energy
Harvester devices. The supplied demonstration DOES NOT support the use of a
Harvester. The power LED does not illuminate in this configuration.
The included PIC16(L)F1947 operates between 1.8V and 3.6V. The included
PIC18F87K22 operates between 1.8V and 5.5V, however for our demonstration pro-
gram the regulator is disabled, and so the device operates between 1.8V and 3.6V.
Refer to the appropriate device data sheet for other devices.
A four-way jumper block, POWER SOURCE SELECT (J8, J9, J10, J11), selects the
power supply options. See Ta bl e 3- 1 for layout.
TABLE 3-1: POWER JUMPERS
3.2.4 Component Select Jumpers
It is possible to enable and disable multiple component features on the 8-bit XLP
Demonstration board by populating/unpopulating specific jumpers on the board. See
Ta bl e 3- 2 for jumper component configuration.
TABLE 3-2: COMPONENT JUMPERS
Note: An example program which utilizes the Energy Harvester with the 8-bit XLP
Development Board is supplied with the 8-bit XLP Software package.