AT32UC3B1128-AUR Atmel, AT32UC3B1128-AUR Datasheet - Page 311
![MCU AVR32 128K FLASH 48-TQFP](/photos/6/82/68248/313-48-vqfp_sml.jpg)
AT32UC3B1128-AUR
Manufacturer Part Number
AT32UC3B1128-AUR
Description
MCU AVR32 128K FLASH 48-TQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Datasheet
1.AT32UC3B164-AUR.pdf
(680 pages)
Specifications of AT32UC3B1128-AUR
Package / Case
48-TQFP, 48-VQFP
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
128KB (128K 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
-
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32059J–12/2010
of a user-defined pattern that indicates the beginning of a valid data.
these patterns. If the start frame delimiter, also known as start bit, is one bit, (ONEBIT at 1), a
logic zero is Manchester encoded and indicates that a new character is being sent serially on the
line. If the start frame delimiter is a synchronization pattern also referred to as sync (ONEBIT at
0), a sequence of 3 bit times is sent serially on the line to indicate the start of a new character.
Figure 21-7. NRZ to Manchester Encoding
The Manchester encoded character can also be encapsulated by adding both a configurable
preamble and a start frame delimiter pattern. Depending on the configuration, the preamble is a
training sequence, composed of a pre-defined pattern with a programmable length from 1 to 15
bit times. If the preamble length is set to 0, the preamble waveform is not generated prior to any
character. The preamble pattern is chosen among the following sequences: ALL_ONE,
ALL_ZERO, ONE_ZERO or ZERO_ONE, writing the field TX_PP in the MAN register, the field
TX_PL is used to configure the preamble length.
patterns. To improve flexibility, the encoding scheme can be configured using the TX_MPOL
field in the MAN register. If the TX_MPOL field is set to zero (default), a logic zero is encoded
with a zero-to-one transition and a logic one is encoded with a one-to-zero transition. If the
TX_MPOL field is set to one, a logic one is encoded with a one-to-zero transition and a logic
zero is encoded with a zero-to-one transition.
Figure 21-8. Preamble Patterns, Default Polarity Assumed
A start frame delimiter is to be configured using the ONEBIT field in the MR register. It consists
Manchester
Manchester
Manchester
Manchester
encoded
encoded
encoded
encoded
data
data
data
data
Manchester
encoded
encoded
NRZ
data
data
Txd
Txd
Txd
Txd
Txd
8 bit width "ZERO_ONE" Preamble
8 bit width "ONE_ZERO" Preamble
8 bit width "ALL_ZERO" Preamble
1
8 bit width "ALL_ONE" Preamble
0
1
1
Figure 21-8
0
0
illustrates and defines the valid
0
Figure 21-9
AT32UC3B
SFD
SFD
SFD
SFD
1
DATA
DATA
DATA
DATA
illustrates
311
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