ATmega88 datasheet(280/340 Pages) ATMEL

Part #	ATmega88

Description	8-bit Microcontroller with 8K Bytes In-System Programmable Flash

PDF	340 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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280 / 340 page

280

7530H–AVR–02/09

ATmega48/88/168 Automotive

25.2

Fuse Bits

The ATmega48/88/168 has three Fuse bytes. Table 25-4 - Table 25-7 describe briefly the func-

tionality of all the fuses and how they are mapped into the Fuse bytes. Note that the fuses are

read as logical zero, “0”, if they are programmed.

Note:

1. The default value of BOOTSZ1..0 results in maximum Boot Size. See Table 25-8 on page 283

for details.

Table 25-4.

Extended Fuse Byte for mega48

Extended Fuse Byte

Bit No

Description

Default Value

–7

–

–6

–

–5

–

–4

–

–3

–

–2

–

–1

–

SELFPRGEN

Self Programming Enable

1 (unprogrammed)

Table 25-5.

Extended Fuse Byte for mega88/168

Extended Fuse Byte

Bit No

Description

Default Value

–7

–

–6

–

–5

–

–4

–

–3

–

BOOTSZ1

Select Boot Size

(see Table 113 for details)

0 (programmed)(1)

BOOTSZ0

Select Boot Size

(see Table 113 for details)

0 (programmed)(1)

BOOTRST

Select Reset Vector

1 (unprogrammed)

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