Datasheet

PICkit™ SERIAL SPI DEMO
BOARD USER’S GUIDE
© 2007 Microchip Technology Inc. DS51658A-page 7
Chapter 2. Installation and Operation
2.1 SPI DEMO BOARD OPERATION
The PICkit™ Serial SPI Demo Board was designed to easily connect to the PICkit
Serial Analzyer (DV164122). Refer to the PICkit Serial Analyzer User’s Guide
(DS51647) chapter on SPI Master Communications mode for configuration and
operation information of the PICkit Serial Analyzer.
The PICkit Serial Analyzer provides the SPI master mode serial communications and
power. The PICkit™ Serial SPI Demo Board devices all operate in the SPI slave mode.
Figure 2-1 shows the PICkit™ Serial SPI Demo Board block diagram.
The PICkit Serial Analyzer has only one active low chip select (CS
) line. Individual
devices are enabled by inserting the 2-pin shunt onto jumper JP1 through JP7 to
connect the CS line to the device. Only one jumper should be inserted at a time.
FIGURE 2-1: PICkit™ Serial SPI Demo Board Block Diagram.
Connector P1 connects to the PICkit Serial Analyzer or virtually any demo or
development board. Connector P1 pin assignments are listed in Table 2-1.
TABLE 2-1: SPI DEMO BOARD CONNECTOR P1 PIN ASSIGNMENTS
Note: Only one jumper should be inserted into JP1 though JP7 at a time.
Incorrect device operation will occur.
JP2
25LC020 TC77-5.0 MCP3201 MCP4822 MCP41010
CS
MOSI
MISO
SCK
MCP6S92
MCP23S08
JP1 JP3 JP4 JP5 JP6 JP7
Pin Label Type Description
1CSInput Chip Select (Active Low)
2+VPowerPower
3 GND Ground Ground
4 MISO Output Master In, Slave Out
5 SCK Input Serial Clock
6 MOSI Input Master Out, Slave In