
Section 3 Command Descriptions
3.27
Below is a summary of the
Status
(
U0
) information.
C# Configuration
C0
All ports are inputs
C1
Port 1 is an output, ports 2 thru 5 are inputs
C2
Ports 1 and 2 are outputs, ports 3 thru 5 are inputs
C3
Ports 1 thru 3 are outputs, ports 4 and 5 are inputs
C4
Ports 1 thru 4 are outputs, port 5 is an input
C5
All ports are outputs
E# Error Message
0
No error
1
Unrecognized command (ex. W3)
2
Illegal command option (ex. F8)
3
Conflict (attempt to output data to an input port)
4
ROM error
5
RAM error
F# Data Format
F0
Hexadecimal
F1
ASCII
F2
Binary
F3
Decimal
F4
High Speed Binary
I### Invert Control Lines
I0
All control and data lines are active high
I1
Inhibit
output is active low
I2
Trigger
output is active low
I4
Data Strobe
output is active low
I8 Clear
output is active low
I16 Data
is active low
I32 EDR
input is fallling edge sensitive
I64 Service
input is falling edge sensitive
Note: the status indication reflects the sum of all received
Invert
commands.
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