AT32UC3L032-D3UR Atmel, AT32UC3L032-D3UR Datasheet - Page 729

• Manufacturer Part Number: AT32UC3L032-D3UR
• Description: MCU AVR32 32KB FLASH 48TLLGA
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3L032-D3UR

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.62 V ~ 3.6 V
• Data Converters: A/D 9x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TLLGA
• Processor Series: AT32UC3x
• Core: AVR32
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: SPI, TWI, USART
• Maximum Clock Frequency: 50 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 7
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR32, EWAVR32-BL
• Development Tools By Supplier: AT32UC3L-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 9 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

31.2.2
31.2.2.1
32099F–11/2010
SAB Security Restrictions
Security measure and control location
Table 31-1.
The Service Access bus can be restricted by internal security measures. A short description of
the security measures are found in the table below.
A security measure is a mechanism to either block or allow SAB access to a certain address or
address range. A security measure is enabled or disabled by one or several control signals. This
is called the control location for the security measure.
These security measures can be used to prevent an end user from reading out the code pro-
grammed in the flash, for instance.
Table 31-2.
Below follows a more in depth description of what locations are accessible when the security
measures are active.
Table 31-3.
Security Measure
Secure RAM area
Secure flash area
Memory Service
Other accesses
Secure mode
programming
Security bit
User code
Reserved
Name
Slave
HSB
Unit
SAB Slaves, Addresses and Descriptions
SAB Security Measures
Secure Mode SAB Restrictions
Control Location
UPROT + security
SECURE bits set
Address [35:32]
security bit set
Address Start
0x580000000
0x500000000
FLASHCDW
FLASHCDW
FLASHCDW
bit set
Other
0x5
0x6
-
Description
Alternative mapping for HSB space, for compatibility with
other 32-bit AVR devices.
Memory Service Unit registers
Unused
Description
Allocates a portion of the flash for secure code. This code
cannot be read or debugged.
Programming and debugging not possible, very restricted
access.
Restricts all access except parts of the flash and the flash
controller for programming user code. Debugging is not
possible unless an OS running from the secure part of the
flash supports it.
(USERROW[31:16] << 10)
(USERROW[15:0] << 10)
0x580000000 +
0x500000000 +
Address End
-
AT32UC3L016/32/64
Access
Blocked
Blocked
As normal
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