AT32UC3A3128-ALUT Atmel, AT32UC3A3128-ALUT Datasheet - Page 569
![IC MCU 128KB FLASH 144LQFP](/photos/6/72/67244/144l1-lqfp_sml.jpg)
AT32UC3A3128-ALUT
Manufacturer Part Number
AT32UC3A3128-ALUT
Description
IC MCU 128KB FLASH 144LQFP
Manufacturer
Atmel
Series
AVR®32 UC3r
Specifications of AT32UC3A3128-ALUT
Core Processor
AVR
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB OTG
Peripherals
Brown-out Detect/Reset, DMA, POR, WDT
Number Of I /o
110
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LQFP
Processor Series
AT32UC3x
Core
AVR32
Data Bus Width
32 bit
Data Ram Size
96 KB
Interface Type
IrDA/SCI/SCIF/UDI
Maximum Clock Frequency
66 MHz
Number Of Timers
3
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR32, EWAVR32-BL, KSK-EVK1100-PL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATEXTWIFI, ATEVK1104
Minimum Operating Temperature
- 40 C
Controller Family/series
AT32UC3A
No. Of I/o's
109
Ram Memory Size
32KB
Cpu Speed
66MHz
No. Of Timers
1
Rohs Compliant
Yes
For Use With
ATEVK1104 - KIT DEV/EVAL FOR AVR32 AT32UC3AATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMRATEVK1100 - KIT DEV/EVAL FOR AVR32 AT32UC3A
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT32UC3A3128-ALUT
Manufacturer:
Atmel
Quantity:
135
- Current page: 569 of 1014
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25.6.4
25.6.4.1
25.6.4.2
32072C–AVR32–2010/03
ISO7816 Mode
ISO7816 Mode Overview
Protocol T = 0
The USART features an ISO7816-compatible operating mode. This mode permits interfacing
with smart cards and Security Access Modules (SAM) communicating through an ISO7816 link.
Both T = 0 and T = 1 protocols defined by the ISO7816 specification are supported.
Setting the USART in ISO7816 mode is performed by writing the MODE field in the Mode Regis-
ter (MR) to the value 0x4 for protocol T = 0 and to the value 0x6 for protocol T = 1.
The ISO7816 is a half duplex communication on only one bidirectional line. The baud rate is
determined by a division of the clock provided to the remote device (see
on page
The USART connects to a smart card as shown in
tional and the Baud Rate Generator feeds the ISO7816 clock on the CLK pin. As the TXD pin
becomes bidirectional, its output remains driven by the output of the transmitter but only when
the transmitter is active while its input is directed to the input of the receiver. The USART is con-
sidered as the master of the communication as it generates the clock.
Figure 25-29. Connection of a Smart Card to the USART
When operating in ISO7816, either in T = 0 or T = 1 modes, the character format is fixed. The
configuration is 8 data bits, even parity and 1 or 2 stop bits, regardless of the values pro-
grammed in the CHRL, MODE9, PAR and CHMODE fields. MSBF can be used to transmit LSB
or MSB first. Parity Bit (PAR) can be used to transmit in normal or inverse mode. Refer to
Register” on page 605
The USART cannot operate concurrently in both receiver and transmitter modes as the commu-
nication is unidirectional at a time. It has to be configured according to the required mode by
enabling or disabling either the receiver or the transmitter as desired. Enabling both the receiver
and the transmitter at the same time in ISO7816 mode may lead to unpredictable results.
The ISO7816 specification defines an inverse transmission format. Data bits of the character
must be transmitted on the I/O line at their negative value. The USART does not support this for-
mat and the user has to perform an exclusive OR on the data before writing it in the Transmit
Holding Register (THR) or after reading it in the Receive Holding Register (RHR).
In T = 0 protocol, a character is made up of one start bit, eight data bits, one parity bit and one
guard time, which lasts two bit times. The transmitter shifts out the bits and does not drive the
I/O line during the guard time.
If no parity error is detected, the I/O line remains at 1 during the guard time and the transmitter
can continue with the transmission of the next character, as shown in
547).
and
USART
”PAR: Parity Type” on page
TXD
CLK
Figure
CLK
606.
I/O
25-29. The TXD line becomes bidirec-
Smart
Card
AT32UC3A3/A4
Figure
”Baud Rate Generator”
25-30.
”Mode
569
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