13
EasyPIC6 Development System
MikroElektronika
page
7.0. PS/2 Communication Interface
The
PS/2
connector enables input units, such as keyboard and mouse, to be connected to the development system. In order to enable
PS/2 communication, it is necessary to correctly place jumpers J20 and J21, thus connecting DATA and CLK lines to the microcontroller
pins RC0 and RC1. Do not connect/disconnect input units to the PS/2 connector while the development system is turned on as it may
permanently damage the microcontroller.
+5V
DATA
NC
NC
CLK
VCC-MCU
VCC
PS/2
J20
RC0
RC1
J21
DATA
CLK
NC
GND
VCC
NC
R37
1K
R38
1K
Front view
Bottom view
1
6
2
3
4
5
VCC-MCU
VCC-MCU
X1
8MHz
C6
22pF
C7
22pF
PICxxxx
OSC2
RC0
RC1
RC2
RC3
RD0
RD1
OSC1
GND
GND
RD7
RD6
RD5
RD4
RC7
RC6
RC5
RC4
RD3
RD2
VCC
MCLR
RA0
RA1
RA2
RA3
RA4
RA5
RE0
RE1
RE2
VCC
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
DIP40
Figure 7-3
: PS/2 connector connection schematic
Figure 7-1
: PS/2 connector
(J20 and J21 are not connected)
Figure 7-2
: PS/2 connector
(J20 and J21 are connected)
PS/2 connector
8.0. ICD Connector
ICD (In-Circuit Debugger) connector enables the microcontroller to communicate with external ICD debugger (ICD2 or ICD3)* from
MICROCHIP. Jumpers J8 and J9 are placed in the same way as when using the
3,&ÀDVK
programmer with mikroICD designed by
MikroEektronika.
1
CN1
RJ12
CLK-PIC
DATA-PIC
GND
VCC
MCLR
2
3
4
5
6
Front view
Bottom view
1
2
3
4
5
6
Side view
)LJXUH
ICD connector pinout and pin labels
Figure 8-1
: ICD connector
ICD connector
*ICD2 and ICD3 are registered trademarks of MICROCHIP®
Figure 7-4
: EasyPIC6 connected to keyboard
