AT91SAM9XE256-CU Atmel, AT91SAM9XE256-CU Datasheet - Page 745
AT91SAM9XE256-CU
Manufacturer Part Number
AT91SAM9XE256-CU
Description
MCU ARM9 256K FLASH 217-BGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM9XE256-CU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
180MHz
Connectivity
EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
56K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
217-LFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
2-Wire, EBI, I2S, SPI, USART
Maximum Clock Frequency
180 MHz
Number Of Programmable I/os
96
Number Of Timers
6
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, KSK-AT91SAM9XE-PL, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9XE-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
Package
217LFBGA
Device Core
ARM926EJ-S
Family Name
91S
Maximum Speed
180 MHz
Operating Supply Voltage
1.8|2.5|3.3 V
For Use With
AT91SAM9XE-EK - KIT EVAL FOR AT91SAM9XEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM9XE256-CU
Manufacturer:
ATMEL
Quantity:
215
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40. USB Host Port (UHP)
40.1
40.2
Figure 40-1. Block Diagram
6254C–ATARM–22-Jan-10
AHB
AHB
uhp_int
UHPCK
MCK
Master
Description
Block Diagram
Slave
Master Block
Slave Block
Registers
OHCI
HCI
HCI
The USB Host Port (UHP) 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.
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 OpenHCI specification. The USB Host
Port User Interface (registers description) can be found in the Open HCI Rev 1.0 Specification
available on http://h18000.www1.hp.com/productinfo/development/openhci.html. The standard
OHCI USB stack driver can be easily ported to Atmel’s architecture in the same way all existing
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.
Access to the USB host operational registers is achieved through the AHB bus slave interface.
The OpenHCI host controller initializes master DMA transfers through the ASB bus master inter-
face as follows:
Control
• Fetches endpoint descriptors and transfer descriptors
• Access to endpoint data from system memory
Data
List Processor
FIFO 64 x 8
Regsisters
ED & TD
Block
AT91SAM9XE128/256/512 Preliminary
Root Hub
Host SIE
and
Hub Registers
PORT S/M
PORT S/M
OHCI Root
v2.0 Full-speed Transceiver
USB transceiver
USB transceiver
Embedded USB
DM
DM
DP
DP
745
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