Clock Driver Conditions
Even though the AVR microcontrollers are fully static designs, meaning that the processor clock can be externally stopped, the AT90EM04 emulator chip can not communicate with the main board if it has no clock. The result will be that the host PC gets a serial communication time-out when reading status or variables from the emulator. Please confirm with the datasheet for the chip emulated for more information about clock oscillator options.

Recommended Operating Conditions, Clock Drive (+4.0V to + 5.5V)
Symbol Min. Max.
fosc (ATtiny12/13) 32.768 kHz 8 MHz
fosc (AT90S2313) 32.768 kHz 10 MHz
fosc (AT90S4433/2333) 32.768 kHz 10 MHz
fosc (AT90S8515/4414) 32.768 kHz 8 MHz
fosc (AT90S8535/4434) 32.768 kHz 8 MHz
Notes: TA = 0°C to 70°C, VCC = +4.0V to + 5.5V, GND = 0V

Recommended Operating Conditions, Clock Drive (+2.7V to + 4.0V)
Symbol Min. Max.
fosc (ATtiny12/13) 32.768 kHz 4 MHz
fosc (AT90S2313) 32.768 kHz 4 MHz
fosc (AT90S4433/2333) 32.768 kHz 4 MHz
fosc (AT90S8515/4414) 32.768 kHz 4 MHz
fosc (AT90S8535/4434) 32.768 kHz 4 MHz
Notes: TA = 0°C to 70°C, VCC = +2.7V to +4.0V, GND = 0V
 
WARNING!
Using the ICE200 outside the recommended operating conditions will cause incorrect operation and can even damage the emulator.

See Also