SAM7SE256 Atmel Corporation, SAM7SE256 Datasheet - Page 246

• Manufacturer Part Number: SAM7SE256
• Manufacturer: Atmel Corporation

Specifications of SAM7SE256

• Flash (kbytes): 256 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 48 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 88
• Ext Interrupts: 88
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• Ssc: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 384
• 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): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

27.3
27.4
27.5
Table 27-1.
246
Pin Name
FIQ
IRQ0 - IRQn
Application Block Diagram
AIC Detailed Block Diagram
I/O Line Description
SAM7SE512/256/32
I/O Line Description
Figure 27-2. Description of the Application Block
Figure 27-3. AIC Detailed Block Diagram
IRQ0-IRQn
FIQ
Pin Description
Fast Interrupt
Interrupt 0 - Interrupt n
Applications
Standalone
Peripherals
Embedded
PIOIRQ
Controller
Embedded Peripherals
PIO
OS Drivers
External
Internal
Source
Source
Stage
Stage
Input
Input
General OS Interrupt Handler
Advanced Interrupt Controller
Advanced Interrupt Controller
Forcing
Fast
OS-based Applications
User Interface
RTOS Drivers
APB
External Peripherals
(External Interrupts)
Controller
Controller
Interrupt
Interrupt
Priority
Fast
Hard Real Time Tasks
Wake Up
Processor
Type
Input
Input
Clock
Management
nFIQ
nIRQ
Controller
Processor
Power
6222F–ATARM–14-Jan-11
ARM