AT91SAM9M10-CU Atmel, AT91SAM9M10-CU Datasheet - Page 246
![IC MCU 16/32BIT ARM9 324TFBGA](/photos/12/13/121367/324-tfbga-pkg_sml.jpg)
AT91SAM9M10-CU
Manufacturer Part Number
AT91SAM9M10-CU
Description
IC MCU 16/32BIT ARM9 324TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM9M10-CU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
400MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, SSC, UART/USART, USB
Peripherals
AC'97, DMA, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Size
64KB (64K x 8)
Program Memory Type
ROM
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
0.9 V ~ 1.1 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
324-TFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
133 MHz
Number Of Programmable I/os
5
Number Of Timers
2 x 16 bit
Operating Supply Voltage
1.65 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, AT91SAM9M10-G45-EK
Controller Family/series
AT91
No. Of I/o's
160
Ram Memory Size
64KB
Cpu Speed
400MHz
No. Of Timers
2
Rohs Compliant
Yes
Cpu Family
AT91
Device Core
ARM926EJ-S
Device Core Size
32b
Frequency (max)
400MHz
Total Internal Ram Size
64KB
# I/os (max)
160
Number Of Timers - General Purpose
7
Operating Supply Voltage (typ)
1.8/2.5/3.3V
Operating Supply Voltage (max)
1.1/1.95/3.6V
Operating Supply Voltage (min)
0.9/1.65/1.8/3V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
RISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
324
Package Type
TFBGA
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:
AT91SAM9M10-CU
Manufacturer:
Atmel
Quantity:
996
- Current page: 246 of 1404
- Download datasheet (22Mb)
22.4.3
22.4.4
22.4.4.1
246
AT91SAM9M10
Refresh (Auto-refresh Command)
Power Management
Self Refresh Mode
An auto-refresh command is used to refresh the DDRSDRC. Refresh addresses are generated
internally by the SDRAM device and incremented after each auto-refresh automatically. The
DDRSDRC generates these auto-refresh commands periodically. A timer is loaded with the
value in the register DDRSDRC_TR that indicates the number of clock cycles between refresh
cycles. When the DDRSDRC initiates a refresh of an SDRAM device, internal memory accesses
are not delayed. However, if the CPU tries to access the SDRAM device, the slave indicates that
the device is busy. A request of refresh does not interrupt a burst transfer in progress.
This mode is activated by setting low-power command bits [LPCB] to ‘01’ in the
DDRSDRC_LPR Register
Self refresh mode is used to reduce power consumption, i.e., when no access to the SDRAM
device is possible. In this case, power consumption is very low. In self refresh mode, the
SDRAM device retains data without external clocking and provides its own internal clocking,
thus performing its own auto-refresh cycles. All the inputs to the SDRAM device become “don’t
care” except CKE, which remains low. As soon as the SDRAM device is selected, the DDRS-
DRC provides a sequence of commands and exits self refresh mode.
The DDRSDRC re-enables self refresh mode as soon as the SDRAM device is not selected. It is
possible to define when self refresh mode will be enabled by setting the register LPR (see
tion 22.7.7 “DDRSDRC Low-power Register” on page
As soon as the SDRAM device is no longer selected, PRECHARGE ALL BANKS command is
generated followed by a SELF-REFREFSH command. If, between these two commands an
SDRAM access is detected, SELF-REFREFSH command will be replaced by an AUTO-
REFRESH command. According to the application, more AUTO-REFRESH commands will be
performed when the self refresh mode is enabled during the application.
This controller also interfaces low-power SDRAM. These devices add a new feature: A single
quarter, one half quarter or all banks of the SDRAM array can be enabled in self refresh mode.
Disabled banks will be not refreshed in self refresh mode. This feature permits to reduce the self
refresh current. The extended mode register controls this feature, it includes Temperature Com-
pensated Self Refresh (TSCR), Partial Array Self Refresh (PASR) parameters and Drive
Strength (DS). These parameters are set during the initialization phase. After initialization, as
soon as PASR/DS/TCSR fields are modified, the Extended Mode Register in the memory of the
external device is accessed automatically and PASR/DS/TCSR bits are updated before entry
into self refresh mode if DDRSDRC does not share an external bus with another controller or
during a refresh command, and a pending read or write access, if DDRSDRC does share an
external bus with another controller. This type of update is a function of the UPD_MR bit (see
Section 22.7.7 “DDRSDRC Low-power Register” on page
The low-power SDR-SDRAM must remain in self refresh mode for a minimum period of TRAS
periods and may remain in self refresh mode for an indefinite period. (See
• 00 = Self refresh mode is enabled as soon as the SDRAM device is not selected
• 01 = Self refresh mode is enabled 64 clock cycles after completion of the last access
• 10 = Self refresh mode is enabled 128 clock cycles after completion of the last access
269), timeout command bit:
269).
Figure
6355B–ATARM–21-Jun-10
22-17)
Sec-
Related parts for AT91SAM9M10-CU
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![KSK-AT91SAM9XE-PL](/photos/15/94/159430/ksk-at91sam9xe-pl_tmb.jpg)
Part Number:
Description:
MCU, MPU & DSP Development Tools KICKSTART KIT FOR AT91SAM9 PLUS
Manufacturer:
IAR Systems
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet: