Atmel ATmega32M1 User Manual

299
7647H–AVR–03/12
Atmel ATmega16/32/64/M1/C1
Note: 1. See “Alternate Functions of Port C” on page 72 for description of RSTDISBL Fuse.
2. The SPIEN Fuse is not accessible in serial programming mode.
3. See “Watchdog Timer Configuration” on page 55 for details.
4. The default value of BOOTSZ1..0 results in maximum Boot Size. See Table 25-8 on page 302
for details.
Table 25-5. PSC Output Behavior During and after Reset until POC register is written
PSCRB PSCARV PSCBRV PSCOUTnA PSCOUTnB
unprogrammed X X normal port normal port
programmed unprogrammed unprogrammed forced low forced low
programmed unprogrammed programmed forced low forced high
programmed programmed unprogrammed forced high forced low
programmed programmed programmed forced high forced high
BODLEVEL2
(1)
2
Brown-out
Detector
trigger level
1
(unprogrammed)
BODLEVEL1
(1)
1
Brown-out
Detector
trigger level
1
(unprogrammed)
BODLEVEL0
(1)
0
Brown-out
Detector
trigger level
1
(unprogrammed)
Table 25-6. Fuse High Byte
High Fuse Byte Bit No Description Default Value
RSTDISBL
(1)
7 External Reset Disable 1 (unprogrammed)
DWEN 6 debugWIRE Enable 1 (unprogrammed)
SPIEN
(2)
5
Enable Serial Program and
Data Downloading
0 (programmed, SPI
programming enabled)
WDTON
(3)
4 Watchdog Timer Always On 1 (unprogrammed)
EESAVE 3
EEPROM memory is
preserved through the Chip
Erase
1 (unprogrammed),
EEPROM not reserved
BOOTSZ1 2
Select Boot Size
(see Table 113 for details)
0 (programmed)
(4)
BOOTSZ0 1
Select Boot Size
(see Table 113 for details)
0 (programmed)
(4)
BOOTRST 0 Select Reset Vector 1 (unprogrammed)

Atmel ATmega32M1 Specifications

General

Brand	Atmel
Model	ATmega32M1
Category	Microcontrollers
Language	English