SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 379
SAM9G20
Manufacturer Part Number
SAM9G20
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G20.pdf
(42 pages)
5.SAM9G20.pdf
(832 pages)
Specifications of SAM9G20
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
7
Ssc
1
Ethernet
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
95
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
Self Program Memory
NO
External Bus Interface
1
Dram Memory
sdram
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
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9261 PDF datasheet
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- SAM9261 PDF datasheet #3
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29. Static Memory Controller (SMC)
29.1
29.2
11053B–ATARM–22-Sep-11
11053B–ATARM–22-Sep-11
Description
Embedded Characteristics
The Static Memory Controller (SMC) generates the signals that control the access to the exter-
nal memory devices or peripheral devices. It has 6 Chip Selects and a 26-bit address bus. The
32-bit data bus can be configured to interface with 8-, 16-, or 32-bit external devices. Separate
read and write control signals allow for direct memory and peripheral interfacing. Read and write
signal waveforms are fully parametrizable.
The SMC can manage wait requests from external devices to extend the current access. The
SMC is provided with an automatic slow clock mode. In slow clock mode, it switches from user-
programmed waveforms to slow-rate specific waveforms on read and write signals. The SMC
supports asynchronous burst read in page mode access for page size up to 32 bytes.
•
• 64-Mbyte Address Space per Chip Select
• 8-, 16- or 32-bit Data Bus
• Word, Halfword, Byte Transfers
• Byte Write or Byte Select Lines
• Programmable Setup, Pulse And Hold Time for Read Signals per Chip Select
• Programmable Setup, Pulse And Hold Time for Write Signals per Chip Select
• Programmable Data Float Time per Chip Select
• Compliant with LCD Module
• External Wait Request
• Automatic Switch to Slow Clock Mode
• Asynchronous Read in Page Mode Supported: Page Size Ranges from 4 to 32 Bytes
6
Chip Selects Available
SAM9G35
SAM9G35
379
379
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