at91rm3400 ATMEL Corporation, at91rm3400 Datasheet - Page 31
at91rm3400
Manufacturer Part Number
at91rm3400
Description
Atmel Advanced At91 Arm Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT91RM3400.pdf
(461 pages)
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AT91RM3400 Debug and Test Features
Overview
1790A–ATARM–11/03
The AT91RM3400 features a number of complementary debug and test capabilities. A
common JTAG/ICE (In-circuit Emulator) port is used for standard debugging functions,
such as downloading code and single-stepping through programs. The Debug Unit pro-
vides a two-pin UART that can be used to upload an application into internal SRAM. It
manages the interrupt handling of the internal COMMTX and COMMRX signals that
trace the activity of the Debug Communication Channel.
A set of dedicated debug and test input/output pins give direct access to these capabili-
ties from a PC-based test environment.
Key features are:
•
•
•
Integrated Embedded In-circuit Emulator
Debug Unit
–
–
–
IEEE1149.1 JTAG Boundary-scan on All Digital Pins
Two-pin UART
Debug Communication Channel
Chip ID Register
AT91RM3400
31
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