AT89LP428 datasheet(118/149 Pages) ATMEL

Part #	AT89LP428

Description	8-bit Microcontroller with 4K/8K Bytes In-System Programmable Flash

PDF	149 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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118 / 149 page

118

3654A–MICRO–8/09

AT89LP428/828

data byte. After each data byte has been transmitted, the byte address is incremented to point to

the next data byte. This allows a page command to linearly sweep the bytes within a page. If the

byte address is incremented past the last byte in the page, the byte address will roll over to the

first byte in the same page. While loading bytes into the page buffer, overwriting previously

loaded bytes will result in data corruption.

For a summary of available commands, see Table 23-3 on page 119.

Figure 23-3. Command Sequence Flow Chart

Figure 23-4. ISP Command Packet

Input Preamble 2

(55H)

Input Opcode

Input Address

High Byte

Input Address

Low Byte

Input/Output

Data

Address +1

Input Preamble 1

(AAH)

654321

SCK

MOSI

MISO

Preamble 2

Opcode

Address High

Address Low

Data In

Data Out

XXX

Preamble 1

AT89LP428 Datasheet(PDF) 118 Page - ATMEL Corporation