AT91SAM9XE512-QU Atmel, AT91SAM9XE512-QU Datasheet - Page 143
![MCU ARM9 512K FLASH 208-PQFP](/photos/6/73/67311/313-208-pqfp_sml.jpg)
AT91SAM9XE512-QU
Manufacturer Part Number
AT91SAM9XE512-QU
Description
MCU ARM9 512K FLASH 208-PQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9XE128-QU.pdf
(860 pages)
Specifications of AT91SAM9XE512-QU
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
512KB (512K 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
208-MQFP, 208-PQFP
Controller Family/series
AT91SAM9xxxxx
No. Of I/o's
96
Ram Memory Size
32KB
Cpu Speed
180MHz
No. Of Timers
2
Rohs Compliant
Yes
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
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
Package
208PQFP
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
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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20. Enhanced Embedded Flash Controller (EEFC)
20.1
20.2
20.2.1
20.2.2
20.3
20.3.1
6254C–ATARM–22-Jan-10
Description
Product Dependencies
Functional Description
Power Management
Interrupt Sources
Embedded Flash Organization
The Enhanced Embedded Flash Controller (EEFC) ensures the interface of the Flash block with
the 32-bit internal bus. Its 128-bit wide memory interface increases performance. It also man-
ages the programming, erasing, locking and unlocking sequences of the Flash using a full set of
commands. One of the commands returns the embedded Flash descriptor definition that informs
the system about the Flash organization, thus making the software generic.
The Enhanced Embedded Flash Controller (EEFC) is continuously clocked. The Power Man-
agement Controller has no effect on its behavior.
The Enhanced Embedded Flash Controller (EEFC) interrupt line is connected to the System
Controller internal source of the Advanced Interrupt Controller. Using the Enhanced Embedded
Flash Controller (EEFC) interrupt requires the AIC to be programmed first. The EEFC interrupt is
generated only on FRDY bit rising. To know the Flash status, EEFC Flash Status Register
should be read each time a system interrupt (SYSIRQ, periph ID = 0) occurs.
The embedded Flash interfaces directly with the 32-bit internal bus. The embedded Flash is
composed of:
The embedded Flash size, the page size, the lock regions organization and GPNVM bits defini-
tion are described in the product definition section. The Enhanced Embedded Flash Controller
(EEFC) returns a descriptor of the Flash controlled after a get descriptor command issued by the
application (see
• One memory plane organized in several pages of the same size.
• Two 128-bit read buffers used for code read optimization.
• One 128-bit read buffer used for data read optimization.
• One write buffer that manages page programming. The write buffer size is equal to the page
• Several lock bits used to protect write/erase operation on several pages (lock region). A lock
• Several bits that may be set and cleared through the Enhanced Embedded Flash Controller
size. This buffer is write-only and accessible all along the 1 MByte address space, so that
each word can be written to its final address.
bit is associated with a lock region composed of several pages in the memory plane.
(EEFC) interface, called General Purpose Non Volatile Memory bits (GPNVM bits).
“Getting Embedded Flash Descriptor” on page
AT91SAM9XE128/256/512 Preliminary
149).
143
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