DATA and SETup Commands

Data Format

Data Format

To understand the format of the data within the block data, there are four important things to keep in mind.

Data is sent to the controller in binary form.

Each byte, as described in this chapter, contains 8 bits.

The first bit of each byte is the MSB (most significant bit).

Byte descriptions are printed in binary, decimal, or ASCII depending on

 

 

how the data is described.

 

 

 

 

 

 

 

 

 

Example

The first ten bytes that describe the section name contain a total of 80 bits as

 

follows:

 

 

 

 

 

 

 

 

Byte 1

 

 

Byte 10

Binary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0100 0100 0100 0001 0101 0100 0100 0001 0010 0000...0010 0000

 

 

 

 

 

 

MSB

LSB

Decimal

68 65 84 65 32 32 32 32 32 32

 

 

 

 

ASCII

DATA space space space space space space

 

 

 

 

 

 

 

 

 

 

17–3

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HP 16555A, 16555D, 16554A manual Data Format, Follows, 17-3