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参数资料
| 型号： | ADP1043AFB100EVALZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 31/72页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION ADP1043A 100W |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电源监控器/跟踪器/序列发生器 |
| 已用 IC / 零件： | ADP1043A |
| 主要属性： | * |
| 次要属性： | * |
| 已供物品： | 板 |
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ADP1043A
EEPROM
The EEPROM is partitioned into two major blocks: the factory
block and the main block. The factory block contains 128 8-bit
bytes, and the main block contains 8k 8-bit bytes.
Factory Block
The factory block is organized into 128 bytes. It is used to store
the original Analog Devices factory calibration and register
settings. The user cannot change these settings. The contents
of the factory block can be downloaded to the registers at any
time by writing 0x01 to Register 0x7B.
Main Block
The main block is available to store data. It is partitioned into
16 pages; each page contains 512 bytes. The data on each page
is sorted into bytes organized in the form of eight rows and 64
columns (see Figure 35).
PAGE 0 TO PAGE 15
Main Block, Page 0 (User Settings)
The ADP1043A user register settings are stored in Page 0 of the
main block. Every time that VDD is applied to the ADP1043A,
the register settings are automatically downloaded from Page 0
of the EEPROM to the registers. The ADP1043A has a unique
command to write new values to Page 0. This is done by writing
0x00 to Register 0x7B. Clicking the Update EEPROM button in
the Analog Devices software GUI also performs this task.
MAIN Block, Page 1 to Page 15 (Scratchpad)
Page 1 to Page 15 of the main block can be used as a scratchpad
to store other data. Register 0x7C and Register 0x7D are used to
point to the page, row, and column of the byte to be accessed.
Write Example
Write data 0xAA to Page 12, Row 3, Column 30 of the
ADP1043A at I 2 C Address 0x57.
Write: DevAddr=0x57 AddrPtr=0x7C Data=0x63
ROW 0
BYTE 0
BYTE 1
BYTE 2
…
BYTE 62
BYTE 63
Write: DevAddr=0x57 AddrPtr=0x7D Data=0x1E
Write: DevAddr=0x57 AddrPtr=0x7E Data=0xAA
ROW 1
BYTE 0
BYTE 1
BYTE 2
…
BYTE 62
BYTE 63
Read Example
ROW 2
ROW 3
BYTE 0
BYTE 0
BYTE 1
BYTE 1
BYTE 2
BYTE 2
…
…
BYTE 62
BYTE 62
BYTE 63
BYTE 63
Read data from Page 10, Row 7, Column 62 of the ADP1043A
at I 2 C Address 0x50.
ROW 4
BYTE 0
BYTE 1
BYTE 2
…
BYTE 62
BYTE 63
Read: DevAddr=0x50
AddrPtr=0x7C Data=0x57
Read: DevAddr=0x50
AddrPtr=0x7D Data=0x3E
ROW 5
ROW 6
ROW 7
BYTE 0
BYTE 0
BYTE 0
BYTE 1
BYTE 1
BYTE 1
BYTE 2
BYTE 2
BYTE 2
…
…
…
BYTE 62
BYTE 62
BYTE 62
BYTE 63
BYTE 63
BYTE 63
Read: DevAddr=0x50
AddrPtr=0x7E
COLUMN
0
COLUMN
1
COLUMN
2
…
COLUMN
62
COLUMN
63
Figure 35. EEPROM Page Diagram
Table 6. EEPROM Registers
Address (Hex)
0x5E
0x7B
0x7C
0x7D
0x7E
Register Name
Password lock
EEPROM restore factory
default register settings
EEPROM X address
EEPROM Y address
EEPROM register
Description
Write the password to this register twice to unlock the EEPROM or to change its password
Write a command code to this register to perform one of the following EEPROM operations:
0x00: Upload registers to Page 0 of the main block (user settings)
0x01: Download factory settings (factory block) to the registers
0x02: Page erase operation
Set XADR[6:0] of EEPROM:
XADR[6:3] selects one of 16 pages of the main block
XADR[2:0] selects one of eight rows per page
Set YADR[5:0] of EEPROM:
YADR[5:0] selects one of 64 bytes in a single row
Read or write to this register to read or program a byte in EEPROM main memory
Rev. 0 | Page 31 of 72
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