MCP47CMB02 datasheet(81/124 Pages) MICROCHIP

Part #	MCP47CMB02

Description	8/10/12-Bit Digital-to-Analog Converters, 1 LSb INL Single/Dual Voltage Outputs with I2C Interface

PDF	124 Pages

Scroll/Zoom	100%

Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

Logo

81 / 124 page

 2018-2019 Microchip Technology Inc.

DS20006089B-page 81

MCP47CXBXX

FIGURE 7-6:

I2C ACK/NACK Behavior (Read Command Example).

Read 1 Word Command

Slave Address

Command

Master S

Slave Address

Data Byte

Master (Continued)

Example 1 (No Command Error)

Master S 1100000 0 1 0 0 0 0 1 1 1 x 1

MCP47CXBXX

I2C Bus S 110000 0 0 0 0 0 0 0 0 1 1 x 0

Master (Continued)

S 00 00 1 0 0 1 1

1 P

MCP47CXBXX (Continued)

0 d d d d d d d d 0 dddddddd 0

I2C Bus (Continued)

S 0 0 0 0 0 0 0 1 0 d d d d d d d d 0 dddddddd 0 P

Example 2 (Command Error)

Master S 1100000 0 1 0 1 1 1 1 0 0 x 1

MCP47CXBXX

I2C Bus S 1100000 0 0 0 1 1 1 1 0 0 x 1

Master (Continued)

S 11 00 0 0 0 1 1

1 P

MCP47CXBXX (Continued)

0 ? ? ? ? ? ? ? ? 0 ???????? 1

I2C Bus (Continued)

S 1 1 0 0 0 0 0 1 0 ? ? ? ? ? ? ? ? 0 ???????? 1 P

Note 1:

Once a command error has occurred (Example 2), the MCP47CXBXX will NACK until a Start condition

occurs.

For command error case (Example 2), the data read is from the register of the last valid address loaded

into the device.

MCP47CMB02 Datasheet(PDF) 81 Page - Microchip Technology