AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 553

• 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: -

34. USB Device Port (UDP)
34.1
1768I–ATARM–09-Jul-09
Overview
The USB Device Port (UDP) is compliant with the Universal Serial Bus (USB) V2.0 full-speed
device specification.
Each endpoint is associated with one or two banks of a dual-port RAM used to store the current
data payload. If two banks are used, one DPR bank is read or written by the processor, while the
other is read or written by the USB device peripheral. This feature is mandatory for isochronous
endpoints. Thus the device maintains the maximum bandwidth (1M bytes/s) by working with
endpoints with two banks of DPR.
Suspend and resume are automatically detected by the USB device, which notifies the proces-
sor by raising an interrupt. Depending on the product, an external signal can be used to send a
wake-up to the USB host controller.
The main features of the UDP are:
• USB V2.0 Full-speed Compliant, 12 Mbits per second
• Embedded USB V2.0 Full-speed Transceiver
• Embedded Dual-port RAM for Endpoints
• Suspend/Resume Logic
• Ping-pong Mode (2 Memory Banks) for Isochronous and Bulk Endpoints
AT91RM9200
553