AT91SAM9G45-EKES Atmel, AT91SAM9G45-EKES Datasheet - Page 820

• Manufacturer Part Number: AT91SAM9G45-EKES
• Description: KIT EVAL FOR AT91SAM9G45
• Manufacturer: Atmel
• Series: AT91SAM Smart ARMr
• Type: MCUr

Specifications of AT91SAM9G45-EKES

• Contents: Board
• Processor To Be Evaluated: SAM9G45
• Data Bus Width: 32 bit
• Interface Type: I2C, SPI, UART
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 1.8 V to 3.3 V
• For Use With/related Products: AT91SAM9G45
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: Q4626953

37.2.2
37.3
Figure 37-2. Block Diagram
820
AHB
AHB
AHB
AHB
Master
Master
Block Diagram
Slave
Slave
AT91SAM9G45
OHCI
Master Block
Master Block
Slave Block
Slave Block
Registers
Registers
OHCI
EHCI
HCI
HCI
HCI
HCI
Control
Control
The USB Host Port integrates a root hub and transceivers on downstream ports. It provides sev-
eral Full-speed half-duplex serial communication ports at a baud rate of 12 Mbit/s. Up to 127
USB devices (printer, camera, mouse, keyboard, disk, etc.) and the USB hub can be connected
to the USB host in the USB “tiered star” topology.
The USB Host Port controller is fully compliant with the Open HCI specification. The USB Host
Port User Interface (registers description) can be found in the Open HCI Rev 1.0 Specification
available on http://h18000.www1.hp.com/productinfo/development/openhci.html. The standard
OHCI USB stack driver can be easily ported to Atmel’s architecture, in the same way all existing
class drivers run without hardware specialization.
This means that all standard class devices are automatically detected and available to the user’s
application. As an example, integrating an HID (Human Interface Device) class driver provides a
plug & play feature for all USB keyboards and mouses.
Data
Data
List Processor
FIFO 64 x 8
Regsisters
Processor
generator
ED & TD
Block
SOF
List
Root Hub
Host SIE
Packet
Buffer
FIFO
and
Hub Registers
PORT S/M 1
PORT S/M 0
Root
v2.0 High-speed Transceiver
USB transceiver
USB transceiver
Embedded USB
6438F–ATARM–21-Jun-10
HFSDMB
HHSDMB
HFSDMA
HHSDMA
HHSDPB
HHSDPA
HFSDPB
HFSDPA