SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 195

• Manufacturer Part Number: SAM9G20
• Manufacturer: Atmel Corporation

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

21.14 Static Memory Controller (SMC) User Interface
The SMC is programmed using the registers listed in
gram the parameters of the external device connected on it. In
16 bytes (0x10) are required per chip select.
The user must complete writing the configuration by writing any one of the SMC_MODE registers.
Table 21-8.
6384E–ATARM–05-Feb-10
0x10 x CS_number + 0x0C
0x10 x CS_number + 0x00
0x10 x CS_number + 0x04
0x10 x CS_number + 0x08
Offset
Register Mapping
Register
SMC Setup Register
SMC Pulse Register
SMC Cycle Register
SMC Mode Register
Table
21-8. For each chip select, a set of 4 registers is used to pro-
Table
SMC_SETUP
SMC_PULSE
SMC_CYCLE
SMC_MODE
Name
21-8, “CS_number” denotes the chip select number.
Read-write
Read-write
Read-write
Read-write
Access
AT91SAM9G20
0x00000000
0x01010101
0x00030003
0x10001000
Reset
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