AT89LP6440 datasheet(162/194 Pages) ATMEL

162 / 194 page

162

3706A–MICRO–9/09

AT89LP6440 - Preliminary

Notes:1. Program Enable must be the first command issued after entering into programming mode.

2. Parallel Enable switches the interface from serial to parallel format until RST returns high.

3. Any number of Data bytes from 1 to 64 may be written/read. The internal address is incremented between each byte.

4. Each byte address selects one fuse or lock bit. Data bytes must be 00h or FFh.

5. See Table 25-5 on page 164 for Fuse definitions.

6. See Table 25-4 on page 163 for Lock Bit definitions.

7. Atmel Signature Bytes:

8. Symbol Key:

Table 25-2.

Programming Command Summary

Command

Opcode

Addr High

Addr Low

Data 0

Data n

Program Enable(1)

1010 1100

0101 0011

–

Parallel Enable

(2)

1010 1100

0011 0101

–

Chip Erase

1000 1010

––––

Read Status

0110 0000

xxxx xxxx

Status Out

Load Page Buffer

(3)

0101 0001

xxxx xxxx

00bb bbbb

Data In 0 ... Data In n

Write Code Page(3)

0101 0000

aaaa aaaa

asbb bbbb

Data In 0 ... Data In n

Write Code Page with Auto-Erase(3)

0111 0000

aaaa aaaa

asbb bbbb

Data In 0 ... Data In n

Read Code Page

(3)

0011 0000

aaaa aaaa

asbb bbbb

Data Out 0 ... Data Out n

Write Data Page(3)

1101 0000

000a aaaa

asbb bbbb

Data In 0 ... Data In n

Write Data Page with Auto-Erase(3)

1101 0010

000a aaaa

asbb bbbb

Data In 0 ... Data In n

Read Data Page

(3)

1011 0000

000a aaaa

asbb bbbb

Data Out 0 ... Data Out n

Write User Fuses(3)(4)(5)

1110 0001

0000 0000

00bb bbbb

Data In 0 ... Data In n

Write User Fuses with Auto-Erase(3)(4)(5)

1111 0001

0000 0000

00bb bbbb

Data In 0 ... Data In n

Read User Fuses

(3)(4)(5)

0110 0001

0000 0000

00bb bbbb

Data Out 0 ... Data Out n

Write Lock Bits

(3)(4)(6)

1110 0100

0000 0000

00bb bbbb

Data In 0 ... Data In n

Read Lock Bits(3)(4)(6)

0110 0100

0000 0000

00bb bbbb

Data Out 0 ... Data Out n

Write User Signature Page(3)

0101 0010

0000 0000

asbb bbbb

Data In 0 ... Data In n

Write User Signature Page with Auto-Erase

(3)

0111 0010

0000 0000

asbb bbbb

Data In 0 ... Data In n

Read User Signature Page(3)

0011 0010

0000 0000

asbb bbbb

Data Out 0 ... Data Out n

Read Atmel Signature Page(3)(7)

0011 1000

0000 0000

0sbb bbbb

Data Out 0 ... Data Out n

Address:

0000H

0001H

0002H

AT89LP6440:

1EH

64H

FFH

a:Page Address Bit

s:Half Page Select Bit

Byte Address Bit

Don’t Care Bit

AT89LP6440 Datasheet(PDF) 162 Page - ATMEL Corporation

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