AT91SAM9G20 Datasheet PDF - ATMEL Corporation
| Part Number | AT91SAM9G20 | |
| Description | AT91 ARM Thumb Microcontrollers | |
| Manufacturers | ATMEL Corporation | |
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Features
• Incorporates the ARM926EJ-S™ ARM® Thumb® Processor
– DSP Instruction Extensions, ARM Jazelle® Technology for Java® Acceleration
– 32-KByte Data Cache, 32-KByte Instruction Cache, Write Buffer
– CPU Frequency 400 MHz
– Memory Management Unit
– EmbeddedICE™, Debug Communication Channel Support
• Additional Embedded Memories
– One 64-KByte Internal ROM, Single-cycle Access at Maximum Matrix Speed
– Two 16-KByte Internal SRAM, Single-cycle Access at Maximum Matrix Speed
• External Bus Interface (EBI)
– Supports SDRAM, Static Memory, ECC-enabled NAND Flash and CompactFlash®
• USB 2.0 Full Speed (12 Mbits per second) Device Port
– On-chip Transceiver, 2,432-byte Configurable Integrated DPRAM
• USB 2.0 Full Speed (12 Mbits per second) Host and Double Port
– Single or Dual On-chip Transceivers
– Integrated FIFOs and Dedicated DMA Channels
• Ethernet MAC 10/100 Base T
– Media Independent Interface or Reduced Media Independent Interface
– 128-byte FIFOs and Dedicated DMA Channels for Receive and Transmit
• Image Sensor Interface
– ITU-R BT. 601/656 External Interface, Programmable Frame Capture Rate
– 12-bit Data Interface for Support of High Sensibility Sensors
– SAV and EAV Synchronization, Preview Path with Scaler, YCbCr Format
• Bus Matrix
– Six 32-bit-layer Matrix
– Boot Mode Select Option, Remap Command
• Fully-featured System Controller, including
– Reset Controller, Shutdown Controller
– Four 32-bit Battery Backup Registers for a Total of 16 Bytes
– Clock Generator and Power Management Controller
– Advanced Interrupt Controller and Debug Unit
– Periodic Interval Timer, Watchdog Timer and Real-time Timer
• Reset Controller (RSTC)
– Based on a Power-on Reset Cell, Reset Source Identification and Reset Output
Control
• Clock Generator (CKGR)
– Selectable 32,768 Hz Low-power Oscillator or Internal Low Power RC Oscillator on
Battery Backup Power Supply, Providing a Permanent Slow Clock
– 3 to 20 MHz On-chip Oscillator, One up to 800 MHz PLL and One up to 100 MHz PLL
• Power Management Controller (PMC)
– Very Slow Clock Operating Mode, Software Programmable Power Optimization
Capabilities
– Two Programmable External Clock Signals
• Advanced Interrupt Controller (AIC)
– Individually Maskable, Eight-level Priority, Vectored Interrupt Sources
– Three External Interrupt Sources and One Fast Interrupt Source, Spurious
Interrupt Protected
• Debug Unit (DBGU)
– 2-wire UART and Support for Debug Communication Channel, Programmable ICE
Access Prevention
– Mode for General Purpose 2-wire UART Serial Communication
AT91 ARM
Thumb
Microcontrollers
AT91SAM9G20
Summary
NOTE: This is a summary document.
The complete document is available on
the Atmel website at www.atmel.com.
6384BS–ATARM–15-Dec-08
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AT91SAM9G20 Summary
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3. Signal Description
Table 3-1. Signal Description List (Continued)
Signal Name
VDDIOM
VDDIOP
VDDBU
VDDANA
VDDPLL
VDDOSC
VDDCORE
VDDUSB
GND
GNDANA
GNDBU
GNDUSB
XIN
XOUT
XIN32
XOUT32
OSCSEL
PCK0 - PCK1
SHDN
WKUP
NTRST
TCK
TDI
TDO
TMS
JTAGSEL
RTCK
Function
Type
Power Supplies
EBI I/O Lines Power Supply
Power
Peripherals I/O Lines Power Supply
Power
Backup I/O Lines Power Supply
Power
Analog Power Supply
Power
PLL Power Supply
Power
Oscillator Power Supply
Power
Core Chip Power Supply
Power
USB Power Supply
Power
Ground
Ground
Analog Ground
Ground
Backup Ground
Ground
USB Ground
Ground
Clocks, Oscillators and PLLs
Main Oscillator Input
Input
Main Oscillator Output
Output
Slow Clock Oscillator Input
Input
Slow Clock Oscillator Output
Output
Slow Clock Oscillator Selection
Input
Programmable Clock Output
Output
Shutdown, Wakeup Logic
Shutdown Control
Output
Wake-up Input
Input
Test Reset Signal
Test Clock
Test Data In
Test Data Out
Test Mode Select
ICE and JTAG
Input
Input
Input
Output
Input
JTAG Selection
Input
Return Test Clock
Output
Active
Level
Comments
1.65V to 1.95V or 3.0V to 3.6V
1.65V to 3.6V
0.9V to 1.1V
3.0V to 3.6V
0.9V to 1.1V
1.65V to 3.6V
0.9V to 1.1V
1.65V to 3.6V
Accepts between 0V and
VDDBU.
Accepts between 0V and
VDDBU.
Low Pull-up resistor
No pull-up resistor
No pull-up resistor
No pull-up resistor
Pull-down resistor. Accepts
between 0V and VDDBU.
6384BS–ATARM–15-Dec-08
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AT91SAM9G20 electronic component. |
| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AT91SAM9G20.PDF Datasheet ] | |
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