pic24hj12gp202 Microchip Technology Inc., pic24hj12gp202 Datasheet - Page 171

• Manufacturer Part Number: pic24hj12gp202
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

18.7
PIC24HJ12GP201/202 family digital signal controllers
can be serially programmed while in the end
application circuit. This is done with two lines for clock
and data and three other lines for power, ground and
the programming sequence. Serial programming
allows
unprogrammed devices and then program the digital
signal controller just before shipping the product. Serial
programming also allows the most recent firmware or a
custom firmware to be programmed. Refer to the
“dsPIC30F/33F Flash Programming Specification”
(DS70152) document for details about In-Circuit Serial
Programming (ICSP).
Any of the three pairs of programming clock/data pins
can be used:
• PGC1/EMUC1 and PGD1/EMUD1
• PGC2/EMUC2 and PGD2/EMUD2
• PGC3/EMUC3 and PGD3/EMUD3
© 2007 Microchip Technology Inc.
customers
In-Circuit Serial Programming
to
manufacture
boards
with
Preliminary
PIC24HJ12GP201/202
18.8
When MPLAB
circuit debugging functionality is enabled. This function
allows simple debugging functions when used with
MPLAB IDE. Debugging functionality is controlled
through the EMUCx (Emulation/Debug Clock) and
EMUDx (Emulation/Debug Data) pin functions.
Any of the three pairs of debugging clock/data pins can
be used:
• PGC1/EMUC1 and PGD1/EMUD1
• PGC2/EMUC2 and PGD2/EMUD2
• PGC3/EMUC3 and PGD3/EMUD3
To use the in-circuit debugger function of the device,
the design must implement ICSP connections to
MCLR, V
pin pair. In addition, when the feature is enabled, some
of the resources are not available for general use.
These resources include the first 80 bytes of data RAM
and two I/O pins.
In-Circuit Debugger
DD
, V
®
SS
ICD 2 is selected as a debugger, the in-
, PGC, PGD and the EMUDx/EMUCx
DS70282B-page 169