ADP1053ACPZ-R7 datasheet(39/84 Pages) AD

39 / 84 page

Data Sheet

ADP1053

Rev. A | Page 39 of 84

Read two bytes from the INFO block.

ASr

0xF1

7-BIT SLAVE

ADDRESS

7-BIT SLAVE

ADDRESS

BYTE COUNT =

0x80

DATA BYTE

MASTER TO SLAVE

SLAVE TO MASTER

Note that the block read command to the INFO block can read

a maximum of 128 bytes. However, only the first two bytes are

used to store the first flag information.

Read from Main Block, Page 0 and Page 1

Page 0 and Page 1 of the main block are reserved for storing the

default settings and user settings, respectively, and are meant to

prevent third-party access to this data. To read from Page 0 or

Page 1, the user must first unlock the EEPROM (see the Unlock

the EEPROM section). After the EEPROM is unlocked, Page 0

and Page 1 are readable using the EEPROM_DATA_xx

commands, as described in the Read from Main Block, Page 2

to Page 15 section. Note that when the EEPROM is locked, a

read from Page 0 or Page 1 returns invalid data.

Read from Main Block, Page 2 to Page 15

Data in Page 2 to Page 15 of the main block is always readable,

even with the EEPROM locked. The data in the EEPROM main

block can be read one byte at a time or in multiple bytes in series

using the EEPROM_DATA_xx commands (Command 0xB0 to

Command 0xBF).

Before executing this command, the user must program the

number of bytes to read using the EEPROM_NUM_RD_BYTES

command (Command 0xD2). The user can also program the offset

from the page boundary where the first read byte is returned using

the EEPROM_ADDR_OFFSET command (Command 0xD3).

In the following example, three bytes from Page 4 are read from

the EEPROM, starting from the fifth byte of that page.

Set number of return bytes = 3.

A0x03

0xD2

7-BIT SLAVE

ADDRESS

MASTER TO SLAVE

SLAVE TO MASTER

Set address offset = 5.

0x00

0x05

0xD3

7-BIT SLAVE

ADDRESS

MASTER TO SLAVE

SLAVE TO MASTER

Read three bytes from Page 4.

ASr

0xB4

7-BIT SLAVE

ADDRESS

7-BIT SLAVE

ADDRESS

A...

BYTE COUNT =

0x03

DATA BYTE

MASTER TO SLAVE

SLAVE TO MASTER

Note that the block read command can read a maximum of

256 bytes for any single transaction.

WRITE OPERATION (BYTE WRITE AND BLOCK

WRITE)

Write to INFO Block

The user cannot write directly to the INFO block; this block is

used by the ADP1053 to store the first flag information (see the

First Flag ID Recording section).

Write to Main Block, Page 0 and Page 1

Page 0 and Page 1 of the main block are reserved for storing the

default settings and user settings, respectively. The user cannot

perform a direct write operation to Page 0 or Page 1 using the

EEPROM_DATA_xx commands. A user write to Page 0 or Page 1

returns a not-acknowledge. To program the register contents of

Page 1 of the main block, it is recommended that the STORE_

USER_ALL command be used (Command 0x15). See the Save

Write to Main Block, Page 2 and Page 3

Page 2 and Page 3 of the main block are reserved for internal

use and their contents should not be written to. Only Page 4

to Page 15 should be used to store data.

Write to Main Block, Page 4 to Page 15

Before performing a write to Page 4 through Page 15 of the

main block, the user must first unlock the EEPROM (see the

Unlock the EEPROM section).

Data in Page 4 to Page 15 of the EEPROM main block can be

programmed (written to) one byte at a time or in multiple

bytes in series using the EEPROM_DATA_xx commands

(Command 0xB0 to Command 0xBF). Before executing this

command, the user can program the offset from the page

boundary where the first byte is written using the EEPROM_

ADDR_OFFSET command (Command 0xD3).

If the targeted page has not yet been erased, the user can erase

the page as described in the Main Block Page Erase section.

In the following example, four bytes are written to Page 9,

starting from the 256th byte of that page.

Set address offset = 256.

0x01

0x00

0xD3

7-BIT SLAVE

ADDRESS

MASTER TO SLAVE

SLAVE TO MASTER

Write four bytes to Page 9.

BYTE COUNT =

0xB9

7-BIT SLAVE

ADDRESS

MASTER TO SLAVE

SLAVE TO MASTER

A...

DATA BYTE 1

DATA BYTE 4

Note that the block write command can write a maximum of

256 bytes for any single transaction.

ADP1053ACPZ-R7 Folha de dados(PDF) 39 Page - Analog Devices

ADP1053ACPZ-R7 Folha de dados(HTML) 39 Page - Analog Devices

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

Folha de dados Download

Ligação URL