AT91SAM9G45-CU-999 Atmel, AT91SAM9G45-CU-999 Datasheet - Page 829
AT91SAM9G45-CU-999
Manufacturer Part Number
AT91SAM9G45-CU-999
Description
IC MCU ARM9 APMC 324TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9G45-EKES.pdf
(1218 pages)
Specifications of AT91SAM9G45-CU-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
400MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB
Peripherals
AC'97, DMA, I²S, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Size
64KB (64K x 8)
Program Memory Type
ROM
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
0.9 V ~ 1.1 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
324-TFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Supplier Unconfirmed
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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38.5
38.5.1
38.5.2
Table 38-2.
38.5.3
Table 38-3.
829
Transfer
Control
Isochronous
Interrupt
Bulk
CONTROL
(bidirectional)
IN
(device toward host)
Functional Description
AT91SAM9G45
USB V2.0 High Speed Device Port Introduction
USB V2.0 High Speed Transfer Types
USB Transfer Event Definitions
USB Communication Flow
USB Transfer Events
Control Transfers
Bulk IN Transfer
Interrupt IN Transfer
Isochronous IN Transfer
The USB V2.0 High Speed Device Port provides communication services between host and
attached USB devices. Each device is offered with a collection of communication flows (pipes)
associated with each endpoint. Software on the host communicates with a USB Device through
a set of communication flows.
A communication flow is carried over one of four transfer types defined by the USB device.
A device provides several logical communication pipes with the host. To each logical pipe is
associated an endpoint. Transfer through a pipe belongs to one of the four transfer types:
As indicated below, transfers are sequential events carried out on the USB bus.
Endpoints must be configured according to the transfer type they handle.
A transfer is composed of one or several transactions;
Unidirectional
Unidirectional
Unidirectional
Bidirectional
• Control Transfers: Used to configure a device at attach time and can be used for other device-
• Bulk Data Transfers: Generated or consumed in relatively large burst quantities and have
• Interrupt Data Transfers: Used for timely but reliable delivery of data, for example, characters
• Isochronous Data Transfers: Occupy a prenegotiated amount of USB bandwidth with a
Direction
specific purposes, including control of other pipes on the device.
wide dynamic latitude in transmission constraints.
or coordinates with human-perceptible echo or feedback response characteristics.
prenegotiated delivery latency. (Also called streaming real time transfers.)
(1)
(2)
Not guaranteed
Not guaranteed
Not guaranteed
Guaranteed
Bandwidth
• Setup transaction
• Setup transaction
• Setup transaction
• Data IN transaction
• Data IN transaction
• Data IN transaction
Endpoint Size
Data IN transactions
Data OUT transactions
Status IN transaction
8,16,32,64
Data IN transaction
Data IN transaction
Data IN transaction
8-1024
8-1024
8-512
Error Detection
Status OUT transaction
Yes
Yes
Yes
Yes
Status IN transaction
6438F–ATARM–21-Jun-10
Automatic
Retrying
Yes
Yes
No
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