ATmega16HVB datasheet(222/273 Pages) ATMEL

tên linh kiện	ATmega16HVB

Giải thích chi tiết về linh kiện	8-bit Microcontroller with 16K/32K Bytes In-System Programmable Flash

PDF	273 Pages

Scroll/Zoom	100%

nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

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222 / 273 page

222

8042A–AVR–07/09

ATmega16HVB/32HVB

Figure 30-6. Programming the EEPROM Waveforms

30.7.7

Reading the Flash

The algorithm for reading the Flash memory is as follows (refer to ”Programming the Flash” on

page 219 for details on Command and Address loading):

A: Load Command “0000 0010”.

G: Load Address High Byte (0x00 - 0xFF).

B: Load Address Low Byte (0x00 - 0xFF).

Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA.

Set BS to “1”. The Flash word high byte can now be read at DATA.

Set OE to “1”.

30.7.8

Reading the EEPROM

The algorithm for reading the EEPROM memory is as follows (refer to ”Programming the Flash”

on page 219 for details on Command and Address loading):

A: Load Command “0000 0011”.

G: Load Address High Byte (0x00 - 0xFF).

B: Load Address Low Byte (0x00 - 0xFF).

Set OE to “0”, and BS1 to “0”. The EEPROM Data byte can now be read at DATA.

Set OE to “1”.

RDY/BSY

RESET +12V

PAGEL

BS2

0x11

ADDR. HIGH

DATA

ADDR. LOW

DATA

ADDR. LOW

DATA

XA1

XA0

BS1

XTAL1

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