SAM7XC256 Atmel Corporation, SAM7XC256 Datasheet - Page 188

• Manufacturer Part Number: SAM7XC256
• Manufacturer: Atmel Corporation

Specifications of SAM7XC256

• Flash (kbytes): 256 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 62
• Ext Interrupts: 62
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 3
• Can: 1
• Ssc: 1
• Ethernet: 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
• Dac Resolution (bits): No
• Temp. Sensor: No
• Crypto Engine: AES/DES
• Sram (kbytes): 64
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

AC and DC Parameters
7.13
7-16
Synchronous interrupt timing
Symbol
T
T
sih
sis
Figure 7-12 shows the ARM7TDMI processor synchronous interrupt timing. The
timing parameters used in Figure 7-12 are listed in Table 7-12.
MCLK
nIRQ
nFIQ
Parameter
Synchronous nFIQ, nIRQ hold from MCLKf with ISYNC=1
Synchronous nFIQ, nIRQ setup to MCLKf, with ISYNC=1
Copyright © 1994-2001. All rights reserved.
Table 7-12 Synchronous interrupt timing parameters
Figure 7-12 Synchronous interrupt timing
T
sis
T
sih
Minimum
Minimum
Parameter type
ARM DDI 0029G