AT91SAM9261-CJ-999 Atmel, AT91SAM9261-CJ-999 Datasheet - Page 301
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AT91SAM9261-CJ-999
Manufacturer Part Number
AT91SAM9261-CJ-999
Description
IC MCU ARM9 ULTRA LP 217LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9261-CJ-999.pdf
(749 pages)
Specifications of AT91SAM9261-CJ-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
190MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
DMA, LCD, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
32KB (32K x 8)
Program Memory Type
ROM
Ram Size
192K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
217-LFBGA
For Use With
AT91SAM9261-EK - KIT EVAL FOR AT91SAM926EJ-SAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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Manufacturer
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28. Debug Unit (DBGU)
28.1
6062M–ATARM–23-Mar-09
Overview
The Debug Unit provides a single entry point from the processor for access to all the debug
capabilities of Atmel’s ARM-based systems.
The Debug Unit features a two-pin UART that can be used for several debug and trace purposes
and offers an ideal medium for in-situ programming solutions and debug monitor communica-
tions. The Debug Unit two-pin UART can be used stand-alone for general purpose serial
communication. Moreover, the association with two peripheral data controller channels permits
packet handling for these tasks with processor time reduced to a minimum.
The Debug Unit also makes the Debug Communication Channel (DCC) signals provided by the
In-circuit Emulator of the ARM processor visible to the software. These signals indicate the sta-
tus of the DCC read and write registers and generate an interrupt to the ARM processor, making
possible the handling of the DCC under interrupt control.
Chip Identifier registers permit recognition of the device and its revision. These registers inform
as to the sizes and types of the on-chip memories, as well as the set of embedded peripherals.
Finally, the Debug Unit features a Force NTRST capability that enables the software to decide
whether to prevent access to the system via the In-circuit Emulator. This permits protection of
the code, stored in ROM.
AT91SAM9261 Preliminary
301
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