MAX34440 datasheet(38/43 Pages) MAXIM

38 / 43 page

PMBus 6-Channel Power-Supply Manager

There is a FAULT_LOG_COUNT (16-bit counter) at the beginning of each fault log that indicates which fault log is

the latest. This counter rolls over should more than 65,535 faults be logged. This counter is not cleared when the

CLEAR_NV_FAULT_LOG bit in MFR_MODE is toggled. The 255 bytes returned by the MFR_NV_FAULT_LOG com-

mand are described in Table 24.

Figure 2. MFR_NV_FAULT_LOG

Table 24. MFR_NV_FAULT_LOG

FAULT LOG INDEX 0

(255 BYTES)

FAULT LOG INDEX 1

(255 BYTES)

FAULT LOG INDEX 2

(255 BYTES)

STATUS VOLTAGE

CURRENT

TEMPERATURE

RAM

FLASH

EACH FAULT IS WRITTEN INTO

THE NEXT FAULT LOG

EACH COMMAND READ

ACCESSES THE NEXT FAULT LOG

FAULT OCCURENCE

FAULT LOG INDEX 14

(255 BYTES)

MFR_NV_FAULT_LOG

BYTE

PARAMETER

BYTE

PARAMETER

00h/FAULT_LOG_INDEX

128

READ_VOUT Index = 3, Page 2

FAULT_LOG_COUNT

130

READ_VOUT Index = 3, Page 3

MFR_TIME_COUNT (LSW)

132

READ_VOUT Index = 3, Page 4

MFR_TIME_COUNT (MSW)

134

READ_VOUT Index = 3, Page 5

STATUS_BYTE/STATUS_CML

136

READ_VOUT Index = 4, Page 0

STATUS_WORD

138

READ_VOUT Index = 4, Page 1

STATUS_VOUT Pages 0/1

140

READ_VOUT Index = 4, Page 2

STATUS_VOUT Pages 2/3

142

READ_VOUT Index = 4, Page 3

STATUS_VOUT Pages 4/5

144

READ_VOUT Index = 4, Page 4

STATUS_MFR_SPECIFIC Pages 0/1

146

READ_VOUT Index = 4, Page 5

STATUS_MFR_SPECIFIC Pages 2/3

148

READ_VOUT Index = 5, Page 0

STATUS_MFR_SPECIFIC Pages 4/5

150

READ_VOUT Index = 5, Page 1

STATUS_MFR_SPECIFIC Pages 6/7

152

READ_VOUT Index = 5, Page 2

STATUS_MFR_SPECIFIC Pages 8/9

154

READ_VOUT Index = 5, Page 3

STATUS_MFR_SPECIFIC Pages 10/11

156

READ_VOUT Index = 5, Page 4

STATUS_MFR_SPECIFIC Pages 12/13

158

READ_VOUT Index = 5, Page 5

MFR_VOUT_PEAK Page 0

160

READ_VOUT Index = 6, Page 0

MFR_VOUT_PEAK Page 1

162

READ_VOUT Index = 6, Page 1

MFR_VOUT_PEAK Page 2

164

READ_VOUT Index = 6, Page 2

MFR_VOUT_PEAK Page 3

166

READ_VOUT Index = 6, Page 3

MFR_VOUT_PEAK Page 4

168

READ_VOUT Index = 6, Page 4

MAX34440 Datasheet(PDF) 38 Page - Maxim Integrated Products

MAX34440 Datasheet(HTML) 38 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

Datasheet Download

Link URL