SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 183

• Manufacturer Part Number: SAM9XE512
• Manufacturer: Atmel Corporation

Specifications of SAM9XE512

• Flash (kbytes): 512 Kbytes
• Pin Count: 217
• Max. Operating Frequency: 180 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): 2
• Uart: 6
• 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): 312
• 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): 1.65 to 1.95
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

22.6.7.2
6254C–ATARM–22-Jan-10
NAND Flash Signals
Figure 22-6. NAND Flash Signal Multiplexing on EBI Pins
The address latch enable and command latch enable signals on the NAND Flash device are
driven by address bits A22 and A21 of the EBI address bus. The user should note that any bit on
the EBI address bus can also be used for this purpose. The command, address or data words
on the data bus of the NAND Flash device are distinguished by using their address within the
NCSx address space. The chip enable (CE) signal of the device and the ready/busy (R/B) sig-
nals are connected to PIO lines. The CE signal then remains asserted even when NCSx is not
selected, preventing the device from returning to standby mode.
SMC
NWR0_NWE
NRD_NOE
AT91SAM9XE128/256/512 Preliminary
NCSx
NAND Flash Logic
NANDOE
NANDWE
NANDOE
NANDWE
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