Maxim Integrated 71M6513H Power Meter IC Family Software - Manual (Page 76)

71M651x Software User’s Guide
MPU STATUS WORD
The MPU maintains the status of certain meter and I/O related variables in the Status Word. The Status Word is
located at address 0x21. The bit assignments are listed in Table 5-8.
Status
Word Bit
Name Description
0 reserved
1 SAGA Reserved for sag flag phase A – not implemented 1
2 SAG B Reserved for sag flag phase B (6513 only) – not implemented 1
3 SAG C Reserved for sag flag phase C (6513 only) – not implemented 1
4 F0 Reserved for reconstructed line signal flag – not implemented 1
5 MAXV Overvoltage. 1 when overvoltage is detected.
6 MAXI Overcurrent. 1 when overcurrent is detected.
7 ONE_SEC Reserved for one-per-second flag – not implemented 1
8 VXEDGE Reserved for DIO port transition – not implemented 1
9 reserved
10 reserved
11 XFER Reserved – not implemented 1
12 CREEP
Creep bit. 1 when creep is detected. The creep bit ios only set if creep is
detected in all channels (elements).
13-31 reserved
Note: 1 : Not implemented in Demo Code revision 3.04
Table 5-8: MPU Status Word Bit Assignment
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