AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 595

• Manufacturer Part Number: AT91RM9200-CI-002
• Description: IC ARM9 MCU 256 BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91RM9200-CI-002

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: POR
• Number Of I /o: 122
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: ROM
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

35. USB Host Port (UHP)
35.1
1768I–ATARM–09-Jul-09
Overview
The USB Host Port interfaces the USB with the host application. It handles Open HCI protocol
(Open Host Controller Interface) as well as USB v2.0 Full-speed and Low-speed protocols. It
also provides a simple Read/Write protocol on the ASB.
The USB Host Port integrates a root hub and transceivers on downstream ports. It provides sev-
eral high-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 standard
OHCI USB stack driver can be easily ported to ATMEL’s architecture in the same way all exist-
ing class drivers run without hardware specialization.
This means that all standard class devices are automatically detected and available to the user
application. As an example, integrating an HID (Human Interface Device) class driver provides a
plug & play feature for all USB keyboards and mouses.
Key features of the USB Host Port are:
• Compliance with Open HCI Rev 1.0 Specification
• Compliance with USB V2.0 Full Speed and Low Speed Specification
• Supports Both Low-speed 1.5 Mbps and Full-speed 12 Mbps USB devices
• Root Hub Integrated with Two Downstream USB Ports
• Embedded USB Transceivers (Number of Transceivers is Product Dependant)
• Supports Power Management
• Operates as a Master on the ASB Bus
AT91RM9200
595