at90pwm81-16se ATMEL Corporation, at90pwm81-16se Datasheet - Page 22

• Manufacturer Part Number: at90pwm81-16se
• Description: 8-bit Avr Microcontroller With 8k Bytes In- System Programmable Flash
• Manufacturer: ATMEL Corporation

5.4
22
Fuse Bits
AT90PWM81
5
a.
EECR (within four cycles after EEMPE has been written) to start a program operation. The temporary
EEPROM page buffer will auto-erase after program operation is completed.
OR
b.
0b11 and trigger the flushing by writing EEPE (within four cycles after EEMPE has been written).
The AT90PWM81 has three Fuse bytes.
fuses and how they are mapped into the Fuse bytes. Note that the fuses are read as logical zero, “0”, if they
are programmed.
Table 5-3.
Notes:
Extended Fuse Byte
PSC2RB
PSC2RBA
PSCRRB
PSCRV
PSCINRB
BODLEVEL2
BODLEVEL1
BODLEVEL0
Write the remaining address bits into EEARH:EEARL
Select which programming mode that should be executed (EEPMn bits). Write the EEPE bit in
If an error situation occurred and the loading should be terminated by software: Write EEPM1:0 to
1. See
(1)
(1)
(1)
Extended Low Fuse Byte
Table 8-2 on page 52
Bit No
7
6
5
4
3
2
1
0
for BODLEVEL Fuse decoding
Table 5-3
Description
PSC2 Reset Behavior
PSC2 Reset Behavior for
OUT22 & 23
PSC Reduced Reset Behavior
PSCOUT & PSCOUTR Reset
Value
PSC & PSCR Inputs Reset
Behavior
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
-
Table 5-5
describe briefly the functionality of all the
Default Value
1
1
1
1
1
1 (unprogrammed)
0 (programmed)
1 (unprogrammed)
7734M–AVR–03/10