ATmega328P datasheet(296/448 Pages) ATMEL

296 / 448 page

296

8161D–AVR–10/09

ATmega48PA/88PA/168PA/328P

Note:

1. The default value of BOOTSZ[1:0] results in maximum Boot Size. See ”Pin Name Mapping” on

page 300.

Note:

1. See Table 28-4 on page 318 for BODLEVEL Fuse decoding.

Table 27-5.

Extended Fuse Byte for ATmega88PA/168PA

Extended Fuse Byte

Bit No

Description

Default Value

–7

–

–6

–

–5

–

–4

–

–3

–

BOOTSZ1

Select Boot Size

(see

Table 26-7 on page 289 and

Table 26-10 on page 290

for details)

0 (programmed)(1)

BOOTSZ0

Select Boot Size

(see

Table 26-7 on page 289 and

Table 26-10 on page 290

for details)

0 (programmed)(1)

BOOTRST

Select Reset Vector

1 (unprogrammed)

Table 27-6.

Extended Fuse Byte for ATmega328P

Extended Fuse Byte

Bit No

Description

Default Value

–7

–

–6

–

–5

–

–4

–

–3

–

BODLEVEL2(1)

Brown-out Detector trigger

level

1 (unprogrammed)

BODLEVEL1(1)

Brown-out Detector trigger

level

1 (unprogrammed)

BODLEVEL0(1)

Brown-out Detector trigger

level

1 (unprogrammed)

Table 27-7.

Fuse High Byte for ATmega48PA/88PA/168PA

High Fuse Byte

Bit No

Description

Default Value

RSTDISBL(1)

External Reset Disable

1 (unprogrammed)

DWEN

debugWIRE Enable

1 (unprogrammed)

SPIEN(2)

Enable Serial Program and

Data Downloading

0 (programmed, SPI

programming enabled)

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