NF FRA5014, Instruction Manual

Page: 81 / 107

5.5 Status System
FRA5014 5-33
5.5.4 Operation status
The structure of the operation status is illustrated in Figure 5-5.
The operation condition register indicates the status of the
FRA5014
, as is shown in Table 5-5.
If “1” is set to a bit in the positive transition filter register, “1” is set to the corresponding operation
event register bit when the corresponding bit of the operation condition register changes from 0 to 1.
If “1” is set to a bit in the negative transition filter register, “1” is set to the corresponding operation
event register bit when the corresponding bit of the operation condition register changes from 1 to 0.
Transitions in both directions (0
→
1 and 1
→
0) can be detected.
When “1” is set to bits in the operation event enable register, the corresponding operation event
register bits become valid, and when “1” is set to any valid bit, “1” is also set to the OPE bit in the
status byte.
Figure 5-5. Structure of Operation Status
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Spot measurement in progress (SPOT)
Always 0 (not used)
Auto sweep measurement in progress (ASW)
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Always 0 (not used)
Calibration in progress (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 filters
OR
OPER (operation event register)
OPEE (operation event enable register)
Operation status summary
OPCR (operation condition register)
Status byte’s OPE (bit 7)