ATUC128L4U Atmel Corporation, ATUC128L4U Datasheet - Page 845
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ATUC128L4U
Manufacturer Part Number
ATUC128L4U
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT32UC3A0128.pdf
(377 pages)
2.AT32UC3A0128.pdf
(159 pages)
3.ATUC128L4U.pdf
(960 pages)
4.ATUC128L4U.pdf
(92 pages)
Specifications of ATUC128L4U
Flash (kbytes)
128 Kbytes
Pin Count
48
Max. Operating Frequency
50 MHz
Cpu
32-bit AVR
# Of Touch Channels
17
Hardware Qtouch Acquisition
Yes
Max I/o Pins
36
Ext Interrupts
36
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
4
Lin
4
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
12
Adc Speed (ksps)
460
Analog Comparators
8
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
16
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
Yes
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.62 to 3.6
Operating Voltage (vcc)
1.62 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
6
Output Compare Channels
18
Input Capture Channels
12
Pwm Channels
35
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATUC128L4U-U
Manufacturer:
ATMEL
Quantity:
3 006
- AT32UC3A0128 PDF datasheet
- AT32UC3A0128 PDF datasheet #2
- ATUC128L4U PDF datasheet #3
- ATUC128L4U PDF datasheet #4
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34.2.2
34.2.2.1
32142A–12/2011
SAB Security Restrictions
Security measure and control location
Table 34-1.
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 34-2.
Below follows a more in depth description of what locations are accessible when the security
measures are active.
Table 34-3.
Note:
Security Measure
Secure RAM area
Secure flash area
Memory Service
Other accesses
Secure mode
programming
Security bit
User code
User page
Reserved
Name
Slave
HSB
Unit
1. Second Word of the User Page, refer to the Fuses Settings section for details.
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
0x580800000
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. The User page is also locked.
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.
(USERPAGE[31:16] << 10)
(USERPAGE[15:0] << 10)
0x580000000 +
0x500000000 +
Address End
0x581000000
ATUC64/128/256L3/4U
-
Access
Blocked
Blocked
Read
As normal
845
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