SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 182

• 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
22.6.7.1
182
AT91SAM9XE128/256/512 Preliminary
NAND Flash Support
External Bus Interface
Figure 22-5. CompactFlash Application Example
External Bus Interface integrate circuitry that interfaces to NAND Flash devices.
The
Programming the EBI_CS3A field in the EBI_CSA Register in the Chip Configuration User Inter-
face to the appropriate value enables the
the Bus Matrix Section. Access to an external
address space reserved to NCS3 (i.e., between 0x4000 0000 and 0x4FFF FFFF).
The NAND Flash Logic drives the read and write command signals of the SMC on the NANDOE
and NANDWE signals when the NCS3 signal is active. NANDOE and NANDWE are invalidated
as soon as the transfer address fails to lie in the NCS3 address space. See Figure
Signal Multiplexing on EBI Pins” on page 183
forms, refer to the Static Memory Controller section.
NAND Flash
NWR3/CFIOW
NWR1/CFIOR
NCS4/CFCS0
A25/CFRNW
NWE/CFWE
EBI
NOE/CFOE
A22/REG
CD (PIO)
D[15:0]
NWAIT
logic is driven by the Static Memory Controller on the NCS3 address space.
CFCE1
CFCE2
A[10:0]
NAND Flash
NAND Flash
for more information. For details on these wave-
DIR
/OE
/OE
logic. For details on this register, refer to
device is then made by accessing the
CompactFlash Connector
D[15:0]
_CD1
_CD2
A[10:0]
_REG
_OE
_WE
_IORD
_IOWR
_CE1
_CE2
_WAIT
6254C–ATARM–22-Jan-10
“NAND Flash