AT89C51RC2-3CSIM datasheet(103/127 Pages) ATMEL

tên linh kiện	AT89C51RC2-3CSIM

Giải thích chi tiết về linh kiện	Microcontroller with 16K/32K Bytes Flash

PDF	127 Pages

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nhà sản xuất	ATMEL [ATMEL Corporation]

Trang chủ	http://www.atmel.com

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103 / 127 page

103

AT89C51RB2/RC2

4180C–8051–12/03

Example

Read Function

This flow is similar for the following frames:

•

Reading Frame

•

EOF Frame/Atmel Frame (only reading Atmel Frame)

Description

Figure 45. Read Flow

Example

HOST

: 05 0000 04 0000 0020 00 D7

BOOTLOADER

: 05 0000 04 0000 0020 00 D7

BOOTLOADER

0000=-----data------ CR LF

(16 data)

BOOTLOADER

0010=-----data------ CR LF

(16 data)

BOOTLOADER

0020=data CR LF

( 1 data)

Display data from address 0000h to 0020h

Host

Bootloader

Read Command

’X’ & CR & LF

RD_WR_SECURITY

Wait Read Command

Read Value

Send Security error

Send Data Read

Send Read Command

Wait Checksum Error

Wait Value of Data

Wait Security Error

COMMAND ABORTED

COMMAND FINISHED

Send Checksum error

COMMAND ABORTED

’L’ & CR & LF

’value’ & ’.’ & CR & LF

Checksum error

HOST

: 02 0000 05 07 02 F0

BOOTLOADER

: 02 0000 05 07 02 F0 Value . CR LF

HOST

: 02 0000 01 02 00 FB

BOOTLOADER

: 02 0000 01 02 00 FB Value . CR LF

Read function (read SBV)

Atmel Read function (read Bootloader version)

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