SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 239

• Manufacturer Part Number: SAM9G45
• Manufacturer: Atmel Corporation

Specifications of SAM9G45

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 2
• Uart: 5
• Lin: 4
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: Yes
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 64
• Self Program Memory: NO
• External Bus Interface: 2
• Dram Memory: DDR2/LPDDR, SDRAM/LPSDR
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 0.9 to 1.1
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Processor
Physical Address (PA)
Read
RealView ICE
Region
Remapping
Reserved
Saved Program Status Register (SPSR)
SBO
SBZ
SBZP
ARM DDI0198D
A processor is the circuitry in a computer system required to process data using the
computer instructions. It is an abbreviation of microprocessor. A clock source, power
supplies, and main memory are also required to create a minimum complete working
computer system.
The MMU performs a translation on Modified Virtual Addresses (MVA) to produce the
Physical Address (PA) which is given to AHB to perform an external access. The PA is
also stored in the data cache to avoid the necessity for address translation when data is
cast out of the cache.
See also Fast Context Switch Extension.
Reads are defined as memory operations that have the semantics of a load. That is, the
ARM instructions LDM, LDRD, LDC, LDR, LDRT, LDRSH, LDRH, LDRSB, LDRB,
LDRBT, LDREX, RFE, STREX, SWP, and SWPB, and the Thumb instructions LDM,
LDR, LDRSH, LDRH, LDRSB, LDRB, and POP. Java instructions that are accelerated
by hardware can cause a number of reads to occur, according to the state of the Java
stack and the implementation of the Java hardware acceleration.
A system for debugging embedded processor cores using a JTAG interface.
A partition of instruction or data memory space.
Changing the address of physical memory or devices after the application has started
executing. This is typically done to allow RAM to replace ROM when the initialization
has been completed.
A field in a control register or instruction format is reserved if the field is to be defined
by the implementation, or produces Unpredictable results if the contents of the field are
not zero. These fields are reserved for use in future extensions of the architecture or are
implementation-specific. All reserved bits not used by the implementation must be
written as 0 and read as 0.
The register that holds the CPSR of the task immediately before the exception occurred
that caused the switch to the current mode.
See Should Be One.
See Should Be Zero.
See Should Be Zero or Preserved.
Copyright © 2001-2003 ARM Limited. All rights reserved.
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