Atmel AT90PWM2 Manual page 23

AT90PWM2/3/2B/3B
24
The calibrated Oscillator is used to time the EEPROM accesses.
gramming time for EEPROM access from the CPU.
Table 6-2. EEPROM Programming Time.
Symbol Number of Calibrated RC Oscillator Cycles
EEPROM write
(from CPU)
The following code examples show one assembly and one C function for writing to the
EEPROM. The examples assume that interrupts are controlled (e.g. by disabling interrupts glo-
bally) so that no interrupts will occur during execution of these functions. The examples also
assume that no Flash Boot Loader is present in the software. If such code is present, the
EEPROM write function must also wait for any ongoing SPM command to finish.
26368
Table 6-2 lists the typical pro-
Typ Programming Time
3.3 ms
4317I–AVR–01/08