NF FRA5022, Instruction Manual

Page: 115 / 145

5.6 Status System
FRA5022
5-37
5.6.4 Operation Status
The operation status structure is shown on figure 5-4.
As can be seen on table 5-5, the operation condition register displays
FRA5022
’ s status.
When a positive transition filter register bit is set to 1, the corresponding state changes
from 0 to 1 and the operation event register bit is set to 1. When a negative transition
filter register bit is set to 1, and the state has changed from 1 to 0, the operation event
register bit is set to 1. It is possible to detect both modifications: 0
→
1, 1
→
0.
When the operation event enable register bits are set to 1, the corresponding operation
event register bits become valid. When at least one such bit is set to 1, the status byte
OPE bit is set to 1.
Figure 5-4 Operation status structure
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Running spot measurement (SPOT)
Running manual sweep measurement (MSW)
Running automatic sweep measurement (ASW)
Hold status (HOLD)
Oscillator SLOW (SLOW)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Always at 0 (unused)
Running calibration (CAL)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PTR (Positive transition filter)
NTR (Negative transition filter)
Transition filter
L
og
ic
al
OR
OPER (Operation event register)
OPEE (Operation event enable register)
Operation status summary
OPCR (Operation condition register)
Status byte OPE (bit 7)