AT91SAM9M10-CU Atmel, AT91SAM9M10-CU Datasheet - Page 344
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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
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26.2.1.3
26.3
26.4
344
Master Clock Controller
Processor Clock Controller
AT91SAM9M10
No UDP HS, UHP FS and DDR2 Mode
The Master Clock Controller provides selection and division of the Master Clock (MCK). MCK is
the clock provided to all the peripherals and the memory controller.
The Master Clock is selected from one of the clocks provided by the Clock Generator. Selecting
the Slow Clock provides a Slow Clock signal to the whole device. Selecting the Main Clock
saves power consumption of the PLLA.
The Master Clock Controller is made up of a clock selector and a prescaler. It also contains a
Master Clock divider which allows the processor clock to be faster than the Master Clock.
The Master Clock selection is made by writing the CSS field (Clock Source Selection) in
PMC_MCKR (Master Clock Register). The prescaler supports the division by a power of 2 of the
selected clock between 1 and 64. The PRES field in PMC_MCKR programs the prescaler. The
Master Clock divider can be programmed through the MDIV field in PMC_MCKR.
Note:
Each time PMC_MCKR is written to define a new Master Clock, the MCKRDY bit is cleared in
PMC_SR. It reads 0 until the Master Clock is established. Then, the MCKRDY bit is set and can
trigger an interrupt to the processor. This feature is useful when switching from a high-speed
clock to a lower one to inform the software when the change is actually done.
Figure 26-2. Master Clock Controller
The PMC features a Processor Clock Controller (PCK) that implements the Processor Idle
Mode. The Processor Clock can be disabled by writing the System Clock Disable Register
• Only PLLA is running at 384 MHz, UPLL power consumption is saved
• USB Device High Speed and Host EHCI High Speed operations are NOT allowed
• Full Speed OHCI input clock is PLLACK, USBDIV is 7 (division by 8)
• System Input clock is PLLACK, PCK is 384 MHz
• MDIV is ‘11’, MCK is 128 MHz
• DDR2 can be used at up to 128 MHz
MAINCK
UPLLCK
PLLACK
SLCK
It is forbidden to modify MDIV and CSS at the same access. Each field must be modified sepa-
rately with a wait for MCKRDY flag between the first field modification and the second field
modification.
PMC_MCKR
CSS
Master Clock
PMC_MCKR
Prescaler
PRES
PMC_MCKR
Processor
Master
Divider
Divider
Clock
Clock
MDIV
MCK
To the Processor
Clock Controller (PCK)
6355B–ATARM–21-Jun-10
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