SAM9XE512 Atmel Corporation, SAM9XE512 Datasheet - Page 52

• 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

Programmer’s Model
2-10
Banked registers have a mode identifier that indicates which User mode register they
are mapped to. These mode identifiers are shown in Table 2-1.
FIQ mode has seven banked registers mapped to r8–r14 (r8_fiq–r14_fiq). As a result
many FIQ handlers do not need to save any registers.
The Supervisor, Abort, IRQ, and Undefined modes each have alternative mode-specific
registers mapped to r13 and r14, allowing a private stack pointer and link register for
each mode.
Copyright © 2000 ARM Limited. All rights reserved.
Mode
User
Fast interrupt
Interrupt
Supervisor
Abort
System
Undefined
a. The usr identifier is usually omitted
Table 2-1 Register mode identifiers
from register names. It is only used in
descriptions where the User or System
mode register is specifically accessed
from another operating mode.
Mode identifier
usr
fiq
irq
svc
abt
usra
und
a
ARM DDI 0165B