Programming Guide

Introduction

Message Head

The message head contains a directional indicator and optional

destination or source address information. The format is as

follows:

} [:dst_addr] for commands (messages transmitted from

the ICCM or host)

{ [:src_addr] for replies (messages received by the ICMM

or host)

Message heads that include address information are referred to as

multidrop message heads. Message heads without addresses are

referred to as single-drop message heads

Command Block

The command block contains the CHUMP command and

associated parameters. The command part of the CHUMP

specification is a tagged, extensible, human readable protocol that

directly implements OSI Layer 7 (Application Layer).

NOTE: CHUMP command parameters and numeric data are

expressed in Hexadecimal (hex) format. Refer to the

individual command descriptions for the specific formats

and syntax.