SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 170

• 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

22.2
22.2.1
Figure 22-1. Organization of the External Bus Interface
170
Block Diagram
AT91SAM9XE128/256/512 Preliminary
External Bus Interface
Bus Matrix
Address Decoders
AHB
Figure 22-1
shows the organization of the External Bus Interface.
Chip Select
Assignor
APB
Controller
Controller
Memory
SDRAM
Static
External Bus Interface
User Interface
CompactFlash
NAND Flash
Controller
Logic
Logic
ECC
Logic
MUX
PIO
D[15:0]
A0/NBS0
A1/NWR2/NBS2
A[15:2], A[22:18]
A16/BA0
A17/BA1
NCS0
NCS1/SDCS
NRD/NOE/CFOE
NWR0/NWE/CFWE
NWR1/NBS1/CFIOR
NWR3/NBS3/CFIOW
SDCK
SDCKE
RAS
CAS
SDWE
SDA10
NANDOE
NANDWE
D[31:16]
A[25:23]
CFRNW/A25
NCS4/CFCS0
NCS5/CFCS1
NCS2/NCS6/NCS7
NWAIT
CFCE1
CFCE2
NCS3/NANDCS
6254C–ATARM–22-Jan-10