SAM7XC256 Atmel Corporation, SAM7XC256 Datasheet - Page 262

• 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

Debug in Depth
B-44
ENABLE
For each of the bits 7:0 in the control value register, there is a corresponding bit in the
control mask register. These bits remove the dependency on particular signals.
Copyright © 1994-2001. All rights reserved.
In the ARM7TDMI core EmbeddedICE Logic, the RANGEOUT
output of Watchpoint 1 is connected to the RANGE input of
Watchpoint 0. Connection enables the two watchpoints to be
coupled for detecting conditions that occur simultaneously, such
as for range checking.
When a watchpoint match occurs, the internal BREAKPT signal
is asserted only when the ENABLE bit is set. This bit exists only
in the value register. It cannot be masked.
ARM DDI 0029G