ATmega32HVB datasheet(217/273 Pages) ATMEL

부품명	ATmega32HVB

상세설명	8-bit Microcontroller with 16K/32K Bytes In-System Programmable Flash

PDF	273 Pages

Scroll/Zoom	100%

제조업체	ATMEL [ATMEL Corporation]

홈페이지	http://www.atmel.com

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217 / 273 page

217

8042A–AVR–07/09

ATmega16HVB/32HVB

Table 30-13. Pin Name Mapping

Signal Name in

Programming Mode

Name

I/O

Function

RDY/BSY

PA0

0: Device is busy programming

1: Device is ready for new command.

BS1

PA1

Byte Select 1 (“0” selects low byte, “1” selects high byte).

BS2

PA2

Byte Select 2 (“0” selects low byte, “1” selects 2’nd high

byte).

PAGEL

PA3

Program Memory and EEPROM data Page Load.

RESET

DATA

PB7:0

I/O

Bi-directional Data bus (Output when OE is low).

PC0

Write Pulse (Active low)

PC1

Output Enable (Active low).

XTAL

PC2

XA0

PC3

XTAL Action Bit 0

XA1

PC4

XTAL Action Bit 1

Table 30-14. Pin Values Used to Enter Programming Mode

Symbol

Value

PB3

Prog_enable[3]

PB2

Prog_enable[2]

PB1

Prog_enable[1]

PB0

Prog_enable[0]

Table 30-15. XA1 and XA0 Coding

XA1

XA0

Action when XTAL1 is Pulsed

Load Flash or EEPROM Address (High or low address byte determined by

BS1).

Load Data (High or Low data byte for Flash determined by BS1).

Load Command

No Action, Idle

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