M42800A Atmel Corporation, M42800A Datasheet - Page 262

• Manufacturer Part Number: M42800A
• Manufacturer: Atmel Corporation

Specifications of M42800A

• Flash (kbytes): 0 Kbytes
• Pin Count: 144
• Max. Operating Frequency: 33 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 54
• Ext Interrupts: 54
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3/5.0
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• 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