ATEVK1105 Atmel, ATEVK1105 Datasheet - Page 499

• Manufacturer Part Number: ATEVK1105
• Description: KIT EVAL FOR AT32UC3A0
• Manufacturer: Atmel
• Series: AVR®32r
• Type: MCUr

Specifications of ATEVK1105

• Contents: Evaluation Board, Software and Documentation
• Processor To Be Evaluated: AT32UC3A0512
• Processor Series: AVR
• Data Bus Width: 32 bit
• Interface Type: USART, TWI, USB, SPI, Ethernet
• Operating Supply Voltage: 3.3 V
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: AVR UC3
• Silicon Core Number: AT32UC3A0512
• Silicon Family Name: AVR
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT32UC3A0
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

30.3
Figure 30-1. Block Diagram
32058J–AVR32–04/11
Block Diagram
Controller
Manager
Interrupt
Power
HSB
PB
USB GCLK @ 48 MHz
USB
The USB controller provides a hardware device to interface a USB link to a data flow stored in a
dual-port RAM (DPRAM).
The USB controller requires a 48 MHz ± 0.25% reference clock, which is the USB generic clock
generated from one of the power manager oscillators, optionally through one of the power man-
ager PLLs.
The 48 MHz clock is used to generate a 12 MHz full-speed (or 1.5 MHz low-speed) bit clock from
the received USB differential data and to transmit data according to full- or low-speed USB
device tolerance. Clock recovery is achieved by a digital phase-locked loop (a DPLL, not repre-
sented), which complies with the USB jitter specifications.
HSB MUX
Master
Slave
HSB0
HSB1
Slave Interface
User Interface
Local
DMA
HSB
USB Interrupts
32 bits
System Clock
Domain
Allocation
USB 2.0
DPRAM
Core
PEP
USB Clock
Domain
Controller
GPIO
AT32UC3A
VBUS
D-
D+
USB_ID
USB_VBOF
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