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Section 3 Command Descriptions

3.6

DATA Dn....Z

The

Data

command outputs up to 40 bits of data to the output ports. The number

of bits which can be sent with the

Data

command is limited by the number of bits

programmed as outputs. For formats

through

, if the amount of data sent is less

than the the number of bits programmed as outputs, the least-significant bits will

contain the data sent and the most-significant bits will be cleared to logic zero. If a

single port is selected with the

Port

command, only eight bits may sent with the

Data

command. The

Data Strobe

output is pulse for approximately 50 microseconds after

new data is output on the selected ports.

For formats

through

, data sent by the controller is contained within a prefix

(

) and a suffix (

). In format

, the five bytes immediately following the prefix (

)

is interpreted as data and the suffix (

) is not used. Refer to the

command for

additional details.

Dn...Z

n...

represents the data to be output, terminated by

(note: in the

mode, the

terminator is not allowed)

Example:

reset the

Digital232

C5P1

configure all ports as output, select port 1

D55Z

send "55" to port 1

read data from port 1,

display shows 55

select all ports

D1234567890Z

send data to all 40 bits

read data from the

Digital232

display shows 1234567890

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 58 59

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