MikroElektronika mikroProg Arkusz Danych Pobierz pdf (Strona 19)

Page 19

USB

mikroProg for PIC

MCU-PGD

MCU-PGC

MCU-MCLR

BRD-PGD

BRD-MCLR

BRD-PGC

DATA

MCU-PGD

Multiplexer

PGD

VCC

MCU-VCC VCC MCU-VCC VCC

IDC10

connector

D+

D-

MCU-PGC

PGC

MCU-MCLR

MCLR

PROG

During programming/debugging, the multiplexer disconnects the microcontroller pins used for programming/debugging from the target device.

This enables the programming/debugging process to be safely performed without aecting the operation of the device itself. It also prevents

external signals from aecting the programming/debugging process. When the programming/debugging process has been completed, the

multiplexer releases the microcontroller pins used for programming, so that they can be used as I/O pins or reset respectively.

Figure 8-6:

Multiplexer in the

programming/

debugging mode

Multiplexer in programming/debugging mode

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 35 36

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MikroElektronika mikroProg Arkusz Danych Strona 19