ATmega32A datasheet(291/352 Pages) ATMEL

Part #	ATmega32A

Description	8-bit Microcontroller with 32K Bytes In-System Programmable Flash

PDF	352 Pages

Scroll/Zoom	100%

Manufacturer	ATMEL [ATMEL Corporation]

Direct Link	http://www.atmel.com

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291 / 352 page

291

8155B–AVR–07/09

ATmega32A

Figure 26-16. State Machine Sequence for Changing/Reading the Data Word

26.10.11 Virtual Flash Page Load Register

The Virtual Flash Page Load Register is a virtual scan chain with length equal to the number of

bits in one Flash page. Internally the Shift Register is 8-bit, and the data are automatically trans-

ferred to the Flash page buffer byte by byte. Shift in all instruction words in the page, starting

with the LSB of the first instruction in the page and ending with the MSB of the last instruction in

the page. This provides an efficient way to load the entire Flash page buffer before executing

Page Write.

Test-Logic-Reset

Run-Test/Idle

Shift-DR

Exit1-DR

Pause-DR

Exit2-DR

Update-DR

Select-IR Scan

Capture-IR

Shift-IR

Exit1-IR

Pause-IR

Exit2-IR

Update-IR

Select-DR Scan

Capture-DR

ATmega32A Datasheet(PDF) 291 Page - ATMEL Corporation