AT91RM9200-QU-002 Atmel, AT91RM9200-QU-002 Datasheet - Page 45
AT91RM9200-QU-002
Manufacturer Part Number
AT91RM9200-QU-002
Description
IC ARM9 MCU 208 PQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheets
1.AT91RM9200-EK.pdf
(41 pages)
2.AT91RM9200-QU-002.pdf
(701 pages)
3.AT91RM9200-QU-002.pdf
(38 pages)
Specifications of AT91RM9200-QU-002
Core Processor
ARM9
Core Size
16/32-Bit
Speed
180MHz
Connectivity
EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
POR
Number Of I /o
122
Program Memory Size
128KB (128K x 8)
Program Memory Type
ROM
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
208-MQFP, 208-PQFP
Processor Series
AT91Rx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
16 KB
Interface Type
2-Wire, EBI, I2S, SPI, UART, USART
Maximum Clock Frequency
180 MHz
Number Of Programmable I/os
122
Number Of Timers
10 bit
Operating Supply Voltage
3 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91RM9200-EK
Minimum Operating Temperature
- 40 C
Eeprom Memory
0 Bytes
Input Output
122
Interface
EBI/EMI, UART/USART
Ios
122
Memory Type
ROM
Number Of Bits
32
Package Type
208-pin PQFP
Programmable Memory
128K Bytes
Timers
3-16-bit
Voltage, Range
1.65-1.95 V
Cpu Family
91R
Device Core
ARM920T
Device Core Size
32b
Frequency (max)
180MHz
Total Internal Ram Size
16KB
# I/os (max)
122
Number Of Timers - General Purpose
6
Operating Supply Voltage (typ)
1.8/3.3V
Operating Supply Voltage (max)
1.95/3.6V
Operating Supply Voltage (min)
1.65/3V
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
208
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91RM9200-QU-002
Manufacturer:
COSMO
Quantity:
12 000
Company:
Part Number:
AT91RM9200-QU-002
Manufacturer:
Atmel
Quantity:
1 680
Company:
Part Number:
AT91RM9200-QU-002
Manufacturer:
ATMEL
Quantity:
2 350
Part Number:
AT91RM9200-QU-002
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
AT91RM9200-QU-002-CQ
Manufacturer:
Atmel
Quantity:
3
- Current page: 45 of 701
- Download datasheet (10Mb)
Write-back Operation
11.6.2.2
11.6.2.3
1768I–ATARM–09-Jul-09
Write Buffer
Physical Address Tag RAM (PA TAG RAM)
When a cache hit occurs for a data access, the cache line is marked as dirty, meaning that its
contents are not up-to-date with those in the main memory.
The ARM920T incorporates a 16-entry write buffer to avoid stalling the processor when writes to
external memory are performed. When a store occurs, its data, address and other details are
written to the write buffer at high speed. The write buffer then completes the store at the main
memory speed (typically slower than the ARM speed). In parallel, the ARM9TDMI processor can
execute further instructions at full speed.
The ARM920T implements Physical Address Tag RAM (PA TAG RAM) to perform write-backs
from the data cache. The physical address of all the lines held in the data cache is stored in the
PA TAG memory, removing the need for address translation when evicting a line from the cache.
When a line is written into the data cache, the physical address TAG is written into the PA TAG
RAM. If this line has to be written back to the main memory, the PA TAG RAM is read and the
physical address is used by the AMBA ASB interface to perform the write-back.
For a 16-Kbyte DCache, the PA TAG RAM is organized by eight segments with:
• 64 rows per segments
• 26 bits per rows
• be
AT91RM9200
45
Related parts for AT91RM9200-QU-002
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC ARM MCU 16BIT 128K 256BGA
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC ARM9 MCU 208 PQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
DEVEL KIT
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
KIT DEVELOPMENT AT91RM9200
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC ARM9 MCU 256 BGA
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC ARM MCU 16BIT 128K 208PQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
AT91RM9200 Development Kit
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet: