AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 566

• 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: -

34.5.2.5
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AT91RM9200
Status IN Transfer
Figure 34-11. Control Read and Write Sequences
Notes:
Once a control request has been processed, the device returns a status to the host. This is a
zero length Data IN transaction.
1. The microcontroller waits for TXPKTRDY in the UDP_CSRx endpoint’s register to be
2. Without writing anything to the UDP_FDRx endpoint’s register, the microcontroller sets
3. This packet is acknowledged by the host and TXPKTRDY is set in the UDP_CSRx end-
Control Read
Control Write
cleared. (At this step, TXPKTRDY must be cleared because the previous transaction
was a setup transaction or a Data OUT transaction.)
TXPKTRDY. The USB device generates a Data IN packet using DATA1 PID.
point’s register.
No Data
Control
1. During the Status IN stage, the host waits for a zero length packet (Data IN transaction with no
2. During the Status OUT stage, the host emits a zero length packet to the device (Data OUT
data) from the device using DATA1 PID. Please refer to Chapter 8 of the Universal Serial Bus
Specification, Rev. 1.1, to get more information on the protocol layer.
transaction with no data).
Setup Stage
Setup Stage
Setup Stage
Setup TX
Setup TX
Setup TX
Status Stage
Status IN TX
Data OUT TX
Data IN TX
Data Stage
Data Stage
Data OUT TX
Data IN TX
1768I–ATARM–09-Jul-09
Status OUT TX
Status Stage
Status IN TX
Status Stage