MCP4432T-103ESLASHML datasheet(61/94 Pages) MICROCHIP

61 / 94 page

 2010 Microchip Technology Inc.

DS22267A-page 61

MCP443X/5X

FIGURE 7-4:

I2C Read (Last Memory Address Accessed).

FIGURE 7-5:

I2C Random Read.

STOP bit

Control Byte

010

1 A1 A0 1 A

Fixed

Address

Variable

Address

Read bits

000

0 D8 A1

Read bit

D7 D6 D5 D4

D2 D1 D0 A2

Read Data bits

Note 1: Master Device is responsible for A / A signal. If a A signal occurs, the MCP44XX will abort this

transfer and release the bus.

2: The Master Device will Not Acknowledge, and the MCP44XX will release the bus so the

Master Device can generate a Stop or Repeated Start condition.

3: The MCP44XX retains the last “Device Memory Address” that it has received. This is the

MCP44XX does not “corrupt” the “Device Memory Address” after Repeated Start or Stop

conditions.

4: The Device Memory Address pointer defaults to 00h on POR and BOR conditions.

STOP bit

Control Byte

READ Command

01 0

1 A1 A0 0

AD AD AD AD

A1 x X A Sr

Fixed

Address

Variable

Address

Device

Memory

Address

Command

Control Byte

Read bits

00 0

0 D8 A1

Write bit

D7 D6 D5 D4

D2 D1 D0 A2

0 1 0

1 A1 A0 1

Read bit

Repeated Start bit

Read Data bits

Note 1: Master Device is responsible for A / A signal. If a A signal occurs, the MCP44XX will abort this

transfer and release the bus.

2: The Master Device will Not Acknowledge, and the MCP44XX will release the bus so the Mas-

ter Device can generate a Stop or Repeated Start condition.

3: The MCP44XX retains the last “Device Memory Address” that it has received. This is the

MCP44XX does not “corrupt” the “Device Memory Address” after Repeated Start or Stop

conditions.

MCP4432T-103E/ML bảng dữ liệu(PDF) 61 Page - Microchip Technology

MCP4432T-103E/ML bảng dữ liệu(HTML) 61 Page - Microchip Technology

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

bảng dữ liệu tải về

Link URL