AT32UC3B1128-AUT Atmel, AT32UC3B1128-AUT Datasheet - Page 383

• Manufacturer Part Number: AT32UC3B1128-AUT
• Description: IC MCU AVR32 128KB FLASH 48-TQFP
• Manufacturer: Atmel
• Series: AVR®32 UC3r

Specifications of AT32UC3B1128-AUT

• Core Processor: AVR
• Core Size: 32-Bit
• Speed: 60MHz
• Connectivity: I²C, IrDA, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 28
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TQFP, 48-VQFP
• Package: 48TQFP
• Device Core: AVR32
• Family Name: AT32
• Maximum Speed: 60 MHz
• Operating Supply Voltage: 1.8|3.3 V
• Data Bus Width: 32 Bit
• Number Of Programmable I/os: 28
• Interface Type: I2S/SPI/TWI/USART/USB
• On-chip Adc: 6-chx10-bit
• Number Of Timers: 3
• For Use With: ATSTK600-TQFP48 - STK600 SOCKET/ADAPTER 48-TQFPATAVRONEKIT - KIT AVR/AVR32 DEBUGGER/PROGRMMR770-1008 - ISP 4PORT ATMEL AVR32 MCU SPIATEVK1101 - KIT DEV/EVAL FOR AVR32 AT32UC3B
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

32059K–03/2011
•Control read
USB Bus
RXSTPI
RXOUTI
TXINI
Wr Enable
HOST
Wr Enable
CPU
Figure 22-15. Control Write
Figure 22-16 on page 383
simultaneous write requests from the CPU and the USB host.
Figure 22-16. Control Read
A NAK handshake is always generated on the first status stage command.
When the controller detects the status stage, all the data written by the CPU are lost and clear-
ing TXINI has no effect.
The user checks if the transmission or the reception is complete.
The OUT retry is always ACKed. This reception sets RXOUTI and TXINI. Handle this with the
following software algorithm:
Once the OUT status stage has been received, the USBB waits for a SETUP request. The
SETUP request has priority over any other request and has to be ACKed. This means that any
other bit should be cleared and the FIFO reset when a SETUP is received.
The user has to take care of the fact that the byte counter is reset when a zero-length OUT
packet is received.
USB Bus
RXSTPI
RXOUTI
TXINI
set TXINI
wait for RXOUTI OR TXINI
if RXOUTI, then clear bit and return
if TXINI, then continue
SETUP
SETUP
HW
SETUP
SETUP
HW
SW
SW
SW
IN
shows a control read transaction. The USBB has to manage the
HW
OUT
HW
DATA
SW
IN
SW
DATA
OUT
HW
OUT
NAK
SW
STATUS
NAK
IN
AT32UC3B
STATUS
OUT
SW
HW
IN
SW
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