SAM9263 Atmel Corporation, SAM9263 Datasheet - Page 21

• 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

Chip Select Lines
1354D–ATARM–08/02
The EBI provides up to eight chip select lines:
•
•
By exchanging address lines for chip select lines, the user can optimize the EBI to suit
the external memory requirements: more external devices or larger address range for
each device.
The selection is controlled by the ALE field in EBI_MCR (Memory Control Register). The
following combinations are possible:
Figure 7. Memory Connections for Four External Devices
Note:
EBI
Chip select lines NCS0 - NCS3 are dedicated to the EBI (not multiplexed).
Chip select lines CS4 - CS7 are multiplexed with the top four address lines A23 -
A20.
A20, A21, A22, A23 (configuration by default)
A20, A21, A22, CS4
A20, A21, CS5, CS4
A20, CS6, CS5, CS4
CS7, CS6, CS5, CS4
NCS0 - NCS3
For four external devices, the maximum address space per device is 16M bytes.
D0 - D15
A0 - A23
NWRx
NRD
8 or 16
NCS0
NCS1
AT91X40 Series
NCS2
D0 - D15 or D0 - D7
NCS3
Memory Enable
Output Enable
Write Enable
A0 - A23
Memory Enable
Memory Enable
Memory Enable
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