DSPIC33FJ64GP306 Microchip Technology Inc., DSPIC33FJ64GP306 Datasheet - Page 253

• Manufacturer Part Number: DSPIC33FJ64GP306
• Description: High-performance, 16-bit Digital Signal Controllers
• Manufacturer: Microchip Technology Inc.

21.5
dsPIC33FJXXXGPX06/X08/X10 devices implement a
JTAG interface, which supports boundary scan device
testing, as well as in-circuit programming. Detailed
information on the interface will be provided in future
revisions of the document.
21.6
The dsPIC33F product families offer the advanced
implementation of CodeGuard™ Security. CodeGuard
Security enables multiple parties to securely share
resources (memory, interrupts and peripherals) on a
single chip. This feature helps protect individual
Intellectual Property in collaborative system designs.
When coupled with software encryption libraries,
CodeGuard™ Security can be used to securely update
Flash even when multiple IP are resident on the single
chip. The code protection features vary depending on
the actual dsPIC33F implemented. The following
sections provide an overview of these features.
The code protection features are controlled by the
Configuration registers: FBS, FSS and FGS.
21.7
dsPIC33FJXXXGPX06/X08/X10 family digital signal
controllers can be serially programmed while in the end
application circuit. This is simply done with two lines for
clock and data and three other lines for power, ground
and the programming sequence. This allows custom-
ers to manufacture boards with unprogrammed
devices and then program the digital signal controller
just before shipping the product. This also allows the
most recent firmware or a custom firmware, to be pro-
grammed. Please refer to the “dsPIC33F/PIC24H
Flash Programming Specification” (DS70152) docu-
ment for details about ICSP.
Any 1 out of 3 pairs of programming clock/data pins
may be used:
• PGC1/EMUC1 and PGD1/EMUD1
• PGC2/EMUC2 and PGD2/EMUD2
• PGC3/EMUC3 and PGD3/EMUD3
© 2007 Microchip Technology Inc.
Note:
JTAG Interface
Code Protection and
CodeGuard™ Security
In-Circuit Serial Programming
Refer to “CodeGuard Security Reference
Manual” (DS70180) for further information
on usage, configuration and operation of
CodeGuard Security.
dsPIC33FJXXXGPX06/X08/X10
21.8
When MPLAB
in-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 1 out of 3 pairs of debugging clock/data pins may
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
, PGC, PGD and the EMUDx/EMUCx
DS70286A-page 251