MAX5945CAX+T Maxim Integrated Products, MAX5945CAX+T Datasheet - Page 27

IC NETWORK PWR CTRL 36-SSOP

MAX5945CAX+T

Manufacturer Part Number
MAX5945CAX+T
Description
IC NETWORK PWR CTRL 36-SSOP
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX5945CAX+T

Controller Type
Network Power Controller
Interface
I²C
Voltage - Supply
3.3V
Current - Supply
4.2mA
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
36-SSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Table 13. Power Status Register
Table 14. Address Input Status Register
Table 15. Mode Register
Software resets of ports (RESET_P_ bit, Table 22) do
not affect the mode register.
Setting DCD_EN_ to 1 enables the DC load disconnect
detection feature (Table 16). Setting ACD_EN_ to 1
enables the AC load disconnect feature. If enabled, the
load disconnect detection starts during power mode
and after startup when the corresponding PGOOD_ bit
in register R10h (Table 13) goes high. A Reset sets
MIDSPAN
SYMBOL
PWR_EN4
PWR_EN3
PWR_EN2
PWR_EN1
SYMBOL
Reserved
Reserved
SYMBOL
PGOOD4
PGOOD3
PGOOD2
PGOOD1
P4_M1
P4_M0
P3_M1
P3_M0
P2_M1
P2_M0
P1_M1
P1_M0
AUTO
A3
A2
A1
A0
ADDRESS = 12h
ADDRESS = 11h
ADDRESS = 10h
BIT
BIT
BIT
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
______________________________________________________________________________________
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
M0DE[1] for port 4
M0DE[0] for port 4
M0DE[1] for port 3
M0DE[0] for port 3
M0DE[1] for port 2
M0DE[0] for port 2
M0DE[1] for port 1
M0DE[0] for port 1
Reserved
Reserved
Device address, A3 pin latched-in status
Device address, A2 pin latched-in status
Device address, A1 pin latched-in status
Device address, A0 pin latched-in status
MIDSPAN input’s latched-in status
AUTO input’s latched-in status
Power-good condition on port 4
Power-good condition on port 3
Power-good condition on port 2
Power-good condition on port 1
Power is enabled on port 4
Power is enabled on port 3
Power is enabled on port 2
Power is enabled on port 1
Quad Network Power Controller
R13h = 0000AAAA where A represents the latched-in
state of the AUTO input prior to the reset.
Setting DET_EN_/CLASS_EN_ to 1 (Table 17) enables
load detection/classification, respectively. Detection
always has priority over classification. To perform clas-
sification without detection, set the DET_EN_ bit low
and CLASS_EN_ bit high.
DESCRIPTION
DESCRIPTION
DESCRIPTION
for Power-Over-LAN
27

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