MAX5971BETI+ Maxim Integrated Products, MAX5971BETI+ Datasheet - Page 28

• Manufacturer Part Number: MAX5971BETI+
• Description: Hot Swap & Power Distribution IEEE 802.3af/at PSE Controller
• Manufacturer: Maxim Integrated Products

Specifications of MAX5971BETI+

• Lead Free Status / Rohs Status: Details

Single-Port, 40W, IEEE 802.3af/at,
PSE Controller with I
The detect event register (R04h/R05h, Table 10) records
detection/classification events for the port. On power-up
or after a reset condition, the detect event register is set
to a default value of 00h. DET_END and CL_END are
set high whenever detection/classification is completed.
As with the other event registers, the detect event reg-
ister has two addresses. When read through the R04h
address, the content of the register is left unchanged.
When read through the CoR R05h address, the register
content is reset to the default state.
The fault event register (R06h/R07h, Table 11) records load
removal and overcurrent events for the port. On power-up
or after a reset condition, the fault event register is set to
Table 10. Detect Event Register
Table 11. Fault Event Register
28
IMAX_FLT
DET_END
SYMBOL
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
SYMBOL
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
LD_DISC
CL_END
_____________________________________________________________________________________
ADDRESS =
ADDRESS =
BIT NO.
BIT NO.
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Detect Event Register (R04h/R05h)
Fault Event Register (R06h/R07h)
TYPE
TYPE
04h
06h
—
—
—
—
—
—
—
—
—
—
—
—
R
R
R
R
TYPE
R/W
CoR
CoR
CoR
CoR
07h
05h
—
—
—
—
—
—
—
—
—
—
—
—
Reserved
Reserved
Reserved
Disconnect on the port
Reserved
Reserved
Reserved
Overcurrent on the port
Reserved
Reserved
Reserved
Classification completed on the port
Reserved
Reserved
Reserved
Detection completed on the port
2
C
a default value of 00h. LD_DISC is set to 1 whenever
the port shuts down due to detection of load removal.
IMAX_FLT is set to 1 when the port shuts down due to an
extended overcurrent event after a successful startup.
As with the other events registers, the fault event reg-
ister has two addresses. When read through the R06h
address, the content of the register is left unchanged.
When read through the CoR R07h address, the register
content is reset to the default state.
Registers R08h/R09h are at this time reserved. Writing
to this register has no effect (the address autoincre-
ment still updates) and any attempt to read this register
returns all zeros.
DESCRIPTION
DESCRIPTION
Reserved Registers (R08h/R09h)