ATmega16 datasheet(263/357 Pages) ATMEL

263 / 357 page

263

2466S–AVR–05/09

ATmega16(L)

Table 109. Pin Name Mapping

Signal Name in

Programming Mode

Pin Name

I/O

Function

RDY/BSY

PD1

0: Device is busy programming, 1: Device is ready

for new command

PD2

Output Enable (Active low)

PD3

Write Pulse (Active low)

BS1

PD4

Byte Select 1 (“0” selects Low byte, “1” selects

High byte)

XA0

PD5

XTAL Action Bit 0

XA1

PD6

XTAL Action Bit 1

PAGEL

PD7

Program Memory and EEPROM data Page Load

BS2

PA0

Byte Select 2 (“0” selects Low byte, “1” selects

2’nd High byte)

DATA

PB7-0

I/O

Bidirectional Data bus (Output when OE is low)

Table 110. Pin Values used to Enter Programming Mode

Symbol

Value

PAGEL

Prog_enable[3]

XA1

Prog_enable[2]

XA0

Prog_enable[1]

BS1

Prog_enable[0]

Table 111. 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

Table 112. Command Byte Bit Coding

Command Byte

Command Executed

1000 0000

Chip Erase

0100 0000

Write Fuse Bits

0010 0000

Write Lock Bits

0001 0000

Write Flash

0001 0001

Write EEPROM

ATmega16 데이터시트(PDF) 263 Page - ATMEL Corporation

ATmega16 데이터시트(HTML) 263 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

데이터시트 다운로드

링크 URL