ST METERS AND MORE UM2241, User Manual

Page: 19 / 26

UM2241 Management information base (MIB)
DocID030767 Rev 1 19/26
3 Management information base (MIB)
3.1 MIB objects
The following table shows the MIB objects present in the ST75MM modem, reserved MIB
objects should not be modified and notifications involving those MIB objects can be
ignored.
Table 8: MIB objects list
Index
(1)
Name Size Rights
(2)
Description
1 MAC data 12 RW Statistical information related to MAC layer
2 PHY configuration 6 RWCS PHY layer configuration
3 MAC configuration 2 RWCS MAC layer configuration
6 Manufacturer data 22 RWCS Node identification parameters
14 HI timings 3 RW Host interface (UART) timings
18 ZC alarm 1 RWI No zero crossing detected on mains alarm
23 PHY custom frequency 17 RWC Custom frequency setting
24 PHY statistics 9 RW PHY layer statistics
Notes:
(1)
Objects not listed here with index in the range (0, 34) are reserved objects, the host controller should avoid to
change their values and disregard any MIB_Write indication related to them.
(2)
R = read, W = write, C = self-reconfigured at startup, S = affect MIB state in SM, I = can generate spontaneous
MIB_Write.indication
Table 9: MAC data MIB object (1)
Byte Field Bit Sub-field Description and values
0-1
RX
stats
- Refused UW
Counter of incoming packets rejected as MAC was
busy
2-3 - Bad CRC
Counter of incoming packets discarded for wrong
CRC
4-5 - Rx packet Counter of packets received by MAC
6-7
TX stats
- Refused packets Not relevant
8-9 -
Requested
packets
Not relevant
10-
11
- Timeouts Not relevant
Table 10: PHY configuration MIB object (2)
Byte Field Bit Sub-field Description and values
0
General
settings
0 Current control
0: current control disabled
1: current control enabled