AT32UC3B1256-Z1UR Atmel, AT32UC3B1256-Z1UR Datasheet - Page 587

MCU AVR32 256K FLASH 48-QFN

AT32UC3B1256-Z1UR

Manufacturer Part Number
AT32UC3B1256-Z1UR
Description
MCU AVR32 256K FLASH 48-QFN
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet

Specifications of AT32UC3B1256-Z1UR

Package / Case
48-QFN Exposed Pad
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Operating Temperature
-40°C ~ 85°C
Speed
60MHz
Number Of I /o
28
Core Processor
AVR
Program Memory Type
FLASH
Ram Size
32K x 8
Program Memory Size
256KB (256K x 8)
Data Converters
A/D 6x10b
Oscillator Type
Internal
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Connectivity
I²C, IrDA, SPI, SSC, UART/USART, USB
Core Size
32-Bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
27.3
27.3.1
27.3.2
32059J–12/2010
On-Chip Debug (OCD)
Features
Overview
Rev: 1.4.3.1
Debugging on the AT32UC3B is facilitated by a powerful On-Chip Debug (OCD) system. The
user accesses this through an external debug tool which connects to the JTAG port and the Aux-
iliary (AUX) port. The AUX port is primarily used for trace functions, and a JTAG-based
debugger is sufficient for basic debugging.
The debug system is based on the Nexus 2.0 standard, class 2+, which includes:
• Basic run-time control
• Program breakpoints
• Data breakpoints
• Program trace
• Ownership trace
• Data trace
In addition to the mandatory Nexus debug features, the AT32UC3B implements several useful
OCD features, such as:
• Debug Communication Channel between CPU and JTAG
• Run-time PC monitoring
• CRC checking
• NanoTrace
• Software Quality Assurance (SQA) support
The OCD features are controlled by OCD registers, which can be accessed by JTAG when the
NEXUS_ACCESS JTAG instruction is loaded. The CPU can also access OCD registers directly
using mtdr/mfdr instructions in any privileged mode. The OCD registers are implemented based
on the recommendations in the Nexus 2.0 standard, and are detailed in the AVR32UC Technical
Reference Manual.
Debug interface in compliance with IEEE-ISTO 5001-2003 (Nexus 2.0) Class 2+
JTAG access to all on-chip debug functions
Advanced program, data, ownership, and watchpoint trace supported
NanoTrace JTAG-based trace access
Auxiliary port for high-speed trace information
Hardware support for 6 program and 2 data breakpoints
Unlimited number of software breakpoints supported
Automatic CRC check of memory regions
AT32UC3B
587

Related parts for AT32UC3B1256-Z1UR