DM163014 Microchip Technology, DM163014 Datasheet - Page 16

• Manufacturer Part Number: DM163014
• Description: BOARD DEMO PICDEM4 12F629,16F630
• Manufacturer: Microchip Technology
• Type: MCUr

Specifications of DM163014

• Contents: Board, Cable, CD
• Processor To Be Evaluated: PIC18F1320 and PIC16F627A
• Interface Type: RS-232
• Silicon Manufacturer: Microchip
• Silicon Core Number: PIC12F629, PIC12F675, PIC16F630, PIC16F676
• Silicon Family Name: PIC12F, PIC16F And PIC18F
• Kit Contents: PICDEM 4 PCB, MCU Samples, Cables, CD
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: PIC12F, PIC16F, PIC18F (8,14,18 pins)
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: DM163014R; DM163014R; Q1543373

PICDEM 4 User’s Guide
A.5
A.6
A.7
A.8
DS51337A-page 12
SWITCHES
OSCILLATOR OPTIONS
ANALOG INPUT
ICD CONNECTOR
Three switches provide the following functions:
• S1 - Active low switch connected to RA4
• S2 - MCLR to hard reset the processor
• S3 - Active low switch connected to RB0
Switch S2 has a debounce capacitor, whereas S1 and S3 do not, allowing the user to
investigate debounce techniques.
When pressed, the switches are grounded; when idle, they are pulled high (+5V).
• RC oscillator (2 MHz approximately) supplied. This oscillator may be disabled by
• Pads provided for user furnished crystal/resonator and two capacitors (Y3).
• Socket provided for a canned oscillator (Y1).
• 32.768 kHz (watch type) crystal for Timer1 (Y2). This oscillator can be disabled by
There are four 5 kΩ potentiometers (R12, R15, R33, R34) on the PICDEM 4 board.
These are all connected to PORTA (RA0-RA3), and can be adjusted from V
to provide an analog input to the devices with an A/D or Comparator module.
Potentiometers R12, R15, R33, and R34 all have individual jumpers. For a potentiom-
eter to function, its specific jumper must be on. The jumper removed will allow for other
I/O functions to take place. For all of the potentiometers to be functional, these jumpers
must be configured as follows:
• J22 - OFF (PORTA LEDs)
• J24 - ON
• J25 - ON
• If J26 is ON, then J23 is OFF
• If J27 is ON, then J28 is OFF
The above conditions will enable all potentiometers.
By way of the modular connector (J5), the MPLAB ICD 2 can be connected for low cost
debugging. The ICD connector utilizes RB6 and RB7 of the microcontroller for in-circuit
debugging. For ICD operation, the Real-time Clock connections to the microcontroller
must be disabled. For ICD operation, these jumpers must be configured as follows:
• J7 - OFF (RTC)
• J9 - OFF (RTC)
• J21 - OFF (PORTB LEDs)
removing jumper J14.
removing jumpers J7 and J9.
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2003 Microchip Technology Inc.
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to V
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