AT91SAM9261-CJ-999 Atmel, AT91SAM9261-CJ-999 Datasheet - Page 573
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AT91SAM9261-CJ-999
Manufacturer Part Number
AT91SAM9261-CJ-999
Description
IC MCU ARM9 ULTRA LP 217LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9261-CJ-999.pdf
(749 pages)
Specifications of AT91SAM9261-CJ-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
190MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
DMA, LCD, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
32KB (32K x 8)
Program Memory Type
ROM
Ram Size
192K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
217-LFBGA
For Use With
AT91SAM9261-EK - KIT EVAL FOR AT91SAM926EJ-SAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
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Part Number
Manufacturer
Quantity
Price
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36.4.2
6062M–ATARM–23-Mar-09
Host Controller Driver
The basic building blocks for communication across the interface are Endpoint Descriptors (ED,
4 double words) and Transfer Descriptors (TD, 4 or 8 double words). The host controller assigns
an Endpoint Descriptor to each endpoint in the system. A queue of Transfer Descriptors is linked
to the Endpoint Descriptor for the specific endpoint.
Figure 36-2. USB Host Communication Channels
Figure 36-3. USB Host Drivers
Device Enumeration
Open HCI
= Transfer Descriptor
Device Register
in Memory Space
Operational
Registers
Mini Driver
Mode
HCCA
Status
Event
Frame Int
Ratio
Control
Bulk
Host Controller Hardware
USB Driver
Host Controller Driver
User Application
Class Driver
Shared RAM
AT91SAM9261 Preliminary
Host Controller
Communications Area
Interrupt 31
Interrupt 0
Interrupt 1
Interrupt 2
HUB Driver
Done
. . .
. . .
. . .
= Endpoint Descriptor
Class Driver
User Space
Kernel Drivers
Hardware
573
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