12
5.1 Using the PICDEM 1 Board
MCP2120/MCP2150
USER鈥橲 GUIDE
Chapter 5. Using a PICDEM鈩?1 or PICDEM鈩?2 Board
as Host
The PICDEM鈩?1 board may be used as the host controller in an IrDA
standard compatible system. PortB can be used to display received
characters, while any of the other ports would be used for the UART and
control signals. A PICmicro
廬
microcontroller may be selected that has a
hardware UART, or the UART functionality may be implemented in software.
Figure 5.1 shows the parts layout (silk-screen) for the PICDEM 1 board.
Figure 5.1: PICDEM 1 Parts Layout
Y2
7
RN1
R8
6
5
PORT B
PICDEM-I
DEMO BOARD
漏1993
4
3
RN2
2
1
0
GND
GND
J1
PIC17C42
C3
Y1
C4
R4
J3
R4
PULLUP
C13
C12
C11
C10
PIC16C54/56/58
PIC16C71/84
U1 C1
+5V
R6
C8
U2
R1
PIC16C55/57
U3 C9
CR1
U5 U4
C7
C14
+9V IN
C6
C15
GND
+5V
+5V
J2
C16
Note 1:
U1 is for use with any 40-pin PIC17C4X device.
2:
U2 is for use with any 18-pin PIC16C5X, PIC16CXXX device.
3:
U3 is for use with any 28-pin PIC16C5X, PIC16CXXX device.
錚?/div>
2001 Microchip Technology Inc.
1
廬
+
GND
+5V
R3
R7
S3
S2
S1
R5
CH0
POT
R2
RA1
C2
MCLR C5
RTCC
DIRECT
+5V PWR
SUPPLY
CONNECTION
DS51246A-page 41
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