ADE7759_15 datasheet(30/36 Pages) AD

30 / 36 page

REV. A

ADE7759

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Table V. Communications Register

DB7

DB6

DB5

DB4

DB3

DB2

DB1

DB0

Bit

Location

Mnemonic

Description

0 to 4

A0 to A4

The five LSBs of the communications register specify the register for the data transfer opera-

tion. Table III lists the address of each ADE7759 on-chip register.

5 to 6

RESERVED

These bits are unused and should be set to zero.

7W/

When this bit is a Logic 1, the data transfer operation immediately following the write to the

Communications register will be interpreted as a write to the ADE7759. When this bit is a

Logic 0, the data transfer operation immediately following the write to the communications

All ADE7759 functionality is accessed via the on-chip registers.

Each register is accessed by first writing to the communications

of the serial interface protocol is given in the Serial Interface

section.

Communications Register

The communications register is an 8-bit, write-only register

that controls the serial data transfer between the ADE7759 and

the host processor. All data transfer operations must begin with

a write to the communications register. The data written to the

communications register determines whether the next operation

is a read or a write and which register is being accessed. Table V

outlines the bit designations for the communications register.

ADE7759 Datasheet(PDF) 30 Page - Analog Devices