zm7100 Power-One, zm7100 Datasheet - Page 21

• Manufacturer Part Number: zm7100
• Description: Zm7100 Series Digital Power Manager
• Manufacturer: Power-One

Group status information is stored in the Group Status Registers STA, STB, STC, and STD shown in Figure 17.
10.3.2
Margining can be executed separately for each group by clicking an appropriate radio button in the GUI IBS
monitoring window or directly via the I
REV. 4.0 JUL 28, 2006
Margining
Bit 7:6 EPD[1:0]: Error propagation from Group D
Bit 5:4 EPC[1:0]: Error propagation from Group C
Bit 3:2 EPB[1:0]: Error propagation from Group B
Bit 1:0 EPA[1:0]: Error propagation from Group A
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Note:
- A fault shall be encoded as ‘0’
R/W-0
EPD1
Bit 7
Bit 7
R-0
PT
00 = none
01 = disable Front-End (set FE_EN low)
10 = disable Front-End and trigger Crow-Bar (FE_EN low, CB high)
11 = none
00 = none
01 = disable Front-End (set FE_EN low)
10 = disable Front-End and trigger Crow-Bar (FE_EN low, CB high)
11 = none
00 = none
01 = disable Front-End (set FE_EN low)
10 = disable Front-End and trigger Crow-Bar (FE_EN low, CB high)
11 = none
00 = none
01 = disable Front-End (set FE_EN low)
10 = disable Front-End and trigger Crow-Bar (FE_EN low, CB high)
11 = none
PT: Pre-warning Temperature
PG: Power Good Warning
TR: Tracking Fault
OT: Temperature Fault
OC: Over Current Fault
UV: Under Voltage Fault
OV: Over Voltage Fault
PV: Phase Voltage Fault
R/W-0
EPD0
R-0
PG
R/W-0
EPC1
TRK
R-0
Figure 17. Group Status Reference Registers STx
2
C bus by high level commands.
Figure 16. Error Propagation Register EPC
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R/W-0
EPC0
R-0
OT
R/W-0
EPB1
R-0
OC
Classification
Warning
Warning
Fault
Fault
Fault
Fault
Error
Error
R/W-0
EPB0
R-0
UV
ZM7100 Series Digital Power Manager
R/W-0
EPA1
R-0
OV
EPA0
R/W-0
Bit 0
Bit 0
R-0
PC
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
read as ‘0’
read as ‘0’
Page 21 of 29
Data Sheet