Microchip Technology DM164123 Data Sheet
PICDEM™ System Management
©
2007 Microchip Technology Inc.
DS41304B-page 9
• PICkit™ 2 ICSP™ (In-Circuit Serial Programmer™) Connector – A 6-pin ICSP
connector is provided for programming the PIC16F886. The PIC16F886 can be
programmed through this connector with the PICkit 2 programmer, or the MPLAB
ICD 2 using the RJ-11 to ICSP adapter (AC164110).
programmed through this connector with the PICkit 2 programmer, or the MPLAB
ICD 2 using the RJ-11 to ICSP adapter (AC164110).
• PICkit™ Serial Analyzer Connector – The PICkit™ Serial Analyzer connector
provides pins for serial communication. The serial communications lines are
designed to be used with the PICkit Serial Analyzer, but can also be used for other
communications applications. The serial communication pinout lines are shown in
Figure 1-2.
designed to be used with the PICkit Serial Analyzer, but can also be used for other
communications applications. The serial communication pinout lines are shown in
Figure 1-2.
FIGURE 1-2:
PICkit™ SERIAL ANALYZER PINOUT
• Two-Wire Fan Connector – The two-wire fan connector (P204) provides power
and ground terminals for a two-wire fan. In order to make speed measurements,
jumper JP200 must be set in the “SENSE” position for two-wire fans.
jumper JP200 must be set in the “SENSE” position for two-wire fans.
• Three-Wire Fan Connector – The three-wire fan (P203) connector provides
power and ground with a tachometer line for speed measurements. Jumper
JP201 must be set in the “TACH” position to measure speed on three-wire fans.
Additional background on driving two-wire and three-wire fans is provided in
Section Chapter 2. “Background” of this document.
JP201 must be set in the “TACH” position to measure speed on three-wire fans.
Additional background on driving two-wire and three-wire fans is provided in
Section Chapter 2. “Background” of this document.
• Four-Wire Fan Connector – A four-wire fan connector (P205) is mounted on the
board and provides power, ground, tachometer and pulse-width modulation termi-
nals. In order to measure the speed of the four-wire fan, the JP201 jumper must
be set to the “TACH” position. Additional background information on driving
four-wire fans is provided in Section Chapter 2. “Background” of this
document.
nals. In order to measure the speed of the four-wire fan, the JP201 jumper must
be set to the “TACH” position. Additional background information on driving
four-wire fans is provided in Section Chapter 2. “Background” of this
document.
• Temperature Sensor – An MCP9700 temperature sensor is located near the
heating element of the PICDEM System Management Board. The MCP9700 is an
analog temperature sensor that converts temperature into an analog voltage. In
order to measure temperature, the JP202 jumper must be set to the “MCP9700”
position.
analog temperature sensor that converts temperature into an analog voltage. In
order to measure temperature, the JP202 jumper must be set to the “MCP9700”
position.
Temperature can also be simulated with the potentiometer that is populated on the
board. The circuit has been designed so that the temperature range of the MCP9700
can be simulated. In order to simulate temperature with the potentiometer, the JP202
jumper must be set to the “POT” position.
board. The circuit has been designed so that the temperature range of the MCP9700
can be simulated. In order to simulate temperature with the potentiometer, the JP202
jumper must be set to the “POT” position.
1
2
3
4
5
6
TX
+5V
G
ND
SDA
SCL
RX