SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 217

• Manufacturer Part Number: SAM9263
• Manufacturer: Atmel Corporation

Specifications of SAM9263

• Flash (kbytes): 0 Kbytes
• Pin Count: 324
• Max. Operating Frequency: 240 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 160
• Ext Interrupts: 160
• Usb Transceiver: 3
• Usb Speed: Full Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 1
• Uart: 4
• Can: 1
• Ssc: 2
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: Yes
• Video Decoder: No
• Camera Interface: Yes
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 96
• Self Program Memory: NO
• External Bus Interface: 2
• Dram Memory: sdram
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Fpu: No
• Mpu / Mmu: No / Yes
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

22.5
22.5.1
22.6
Figure 22-2.
6249I–ATARM–3-Oct-11
Product Dependencies
External Memory Mapping
I/O Lines
SMC
Memory Connections for Eight External Devices
NCS[0] - NCS[7]
D[31:0]
A[25:0]
NWE
NRD
The pins used for interfacing the Static Memory Controller may be multiplexed with the PIO
lines. The programmer must first program the PIO controller to assign the Static Memory Con-
troller pins to their peripheral function. If I/O Lines of the SMC are not used by the application,
they can be used for other purposes by the PIO Controller.
The SMC provides up to 26 address lines, A[25:0]. This allows each chip select line to address
up to 64 Mbytes of memory.
If the physical memory device connected on one chip select is smaller than 64 Mbytes, it wraps
around and appears to be repeated within this space. The SMC correctly handles any valid
access to the memory device within the page (see
A[25:0] is only significant for 8-bit memory, A[25:1] is used for 16-bit memory, A[25:2] is used for
32-bit memory.
8 or 16 or 32
NCS0
NCS1
NCS2
A[25:0]
Memory Enable
Output Enable
Write Enable
D[31:0] or D[15:0] or
D[7:0]
NCS3
Memory Enable
Figure
NCS4
Memory Enable
NCS5
NCS6
Memory Enable
22-2).
NCS7
Memory Enable
Memory Enable
Memory Enable
AT91SAM9263
Memory Enable
193