User`s guide

NE-4100 Series Serial Command Mode User’s Guide

Page 2

Chapter 2 Serial Command Format and

Command Set

In this chapter, we describe the structure of the data frames used to issue commands and receive

replies to and from the device. The basic Command Frame Format and Reply Frame Format are:

Command Frame Format

Descriptor

C-Head (>) Command Code OP Code Parameter Tail (CR)

Length (bytes)

1 1 2 Variable 1

Reply Frame Format

Descriptor

R-Head (<) Reply Code OP Code Parameter Tail (CR)

Length (bytes)

1 1 2 Variable 1

The possible settings of each descriptor are given below. All Command Code, OP Code, and

Return Code values must be in upper case. Note that “OP Code” and “Parameter” are described

together, since they come as a pair. That is, the length and meaning of the Parameter descriptor

depends on which OP Code value is used.

C-Head

Settings Comments

> Fixed value (HEX = 3Eh)

R-Head

Settings Comments

< Fixed value (HEX = 3Ch)

Tail

Settings Comments

CR Fixed value (HEX = 0Dh)

Command Code

Settings Comments

R Get Network Enabler parameter

W Set Network Enabler parameter