AT91SAM9XE512-QU Atmel, AT91SAM9XE512-QU Datasheet - Page 60
![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
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Manufacturer
Quantity
Price
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40 000
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11.7
11.7.1
Table 11-7.
11.7.2
11.7.3
60
HBurst[2:0]
SINGLE
INCR4
INCR8
WRAP8
Bus Interface Unit
AT91SAM9XE128/256/512 Preliminary
Supported Transfers
Thumb Instruction Fetches
Address Alignment
Supported Transfers
Description
Single transfer
Four-word incrementing burst
Eight-word incrementing burst
Eight-word wrapping burst
The ARM926EJ-S features a Bus Interface Unit (BIU) that arbitrates and schedules AHB
requests. The BIU implements a multi-layer AHB, based on the AHB-Lite protocol, that enables
parallel access paths between multiple AHB masters and slaves in a system. This is achieved by
using a more complex interconnection matrix and gives the benefit of increased overall bus
bandwidth, and a more flexible system architecture.
The multi-master bus architecture has a number of benefits:
The ARM926EJ-S processor performs all AHB accesses as single word, bursts of four words, or
bursts of eight words. Any ARM9EJ-S core request that is not 1, 4, 8 words in size is split into
packets of these sizes. Note that the Atmel bus is AHB-Lite protocol compliant, hence it does not
support split and retry requests.
Table 11-7
are used for.
All instructions fetches, regardless of the state of ARM9EJ-S core, are made as 32-bit accesses
on the AHB. If the ARM9EJ-S is in Thumb state, then two instructions can be fetched at a time.
The ARM926EJ-S BIU performs address alignment checking and aligns AHB addresses to the
necessary boundary. 16-bit accesses are aligned to halfword boundaries, and 32-bit accesses
are aligned to word boundaries.
• It allows the development of multi-master systems with an increased bus bandwidth and a
• Each AHB layer becomes simple because it only has one master, so no arbitration or master-
• The arbitration becomes effective when more than one master wants to access the same
flexible architecture.
to-slave muxing is required. AHB layers, implementing AHB-Lite protocol, do not have to
support request and grant, nor do they have to support retry and split transactions.
slave simultaneously.
gives an overview of the supported transfers and different kinds of transactions they
Single transfer of word, half word, or byte:
Half-line cache write-back, Instruction prefetch, if enabled. Four-word burst NCNB,
NCB, WT, or WB write.
Full-line cache write-back, eight-word burst NCNB, NCB, WT, or WB write.
Cache linefill
• data write (NCNB, NCB, WT, or WB that has missed in DCache)
• data read (NCNB or NCB)
• NC instruction fetch (prefetched and non-prefetched)
• page table walk read
6254C–ATARM–22-Jan-10
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