MCP4441 datasheet(56/94 Pages) MICROCHIP

56 / 94 page

MCP443X/5X

DS22267A-page 56

 2010 Microchip Technology Inc.

TABLE 7-2:

MEMORY MAP AND THE SUPPORTED COMMANDS

Address

Command

Data

(10-bits) (1)

Comment

Value

Function

00h

Volatile Wiper 0

Write Data

nn nnnn nnnn

Read Data (3)

nn nnnn nnnn

Increment Wiper

—

Decrement Wiper

—

01h

Volatile Wiper 1

Write Data

nn nnnn nnnn

Read Data (3)

nn nnnn nnnn

Increment Wiper

—

Decrement Wiper

—

02h

Reserved

——

03h

Reserved

——

04h (2)

Volatile

TCON 0 Register

Write Data

nn nnnn nnnn

Read Data (3)

nn nnnn nnnn

05h (2)

—

Read Data (3)

—

Maps to Non-Volatile MCP444x/6x device’s

STATUS Register

06h

Volatile Wiper 2

Write Data

nn nnnn nnnn

Read Data (3)

nn nnnn nnnn

Increment Wiper

—

Decrement Wiper

—

07h

Volatile Wiper 3

Write Data

nn nnnn nnnn

Read Data (3)

nn nnnn nnnn

Increment Wiper

—

Decrement Wiper

—

08h

Reserved

——

09h

Reserved

——

0Ah (2)

Volatile

TCON 1 Register

Write Data

nn nnnn nnnn

Read Data (3)

nn nnnn nnnn

0Bh - 0Fh Reserved

——

Note

The Data Memory is only 9-bits wide, so the MSb is ignored by the device.

Increment or Decrement commands are invalid for these addresses.

I2C read operation will read 2 bytes, of which the 10-bits of data are contained within.

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