DS1875T+ Maxim Integrated Products, DS1875T+ Datasheet - Page 54

• Manufacturer Part Number: DS1875T+
• Description: IC SFP CTRLR/TRIPLEXER 38-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of DS1875T+

• Applications: Fiber Optics
• Interface: I²C
• Voltage - Supply: 2.85 V ~ 3.9 V
• Package / Case: *
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PON Triplexer and SFP Controller
Lower Memory, Register 78h: DOUT
54
78h
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POWER-ON VALUE
READ ACCESS
WRITE ACCESS
MEMORY TYPE
At power-on, these bits are defined by the value stored in the DPU byte (Table 02h, Register C0h). These bits define
the value of the logic states of their corresponding output pins.
BITS 5:4
RESET
M3QT
BIT 7
BIT 7
BIT 6
BIT 3
BIT 2
BIT 1
BIT 0
M3QT RESET: Resets the latch for M3QT. The PWM does not begin normal operation until the MON3
voltage is below M3QT, regardless of resetting the latch.
0 = (default)
1 = M3QT alarm is reset.
SOFT M3QT: Software control for setting the M3QT alarm. The PWM output pulse SW is disabled.
0 = (Default) Internal signal is controlled by trip point comparison.
1 = M3QT alarm is set to 1.
RESERVED
D3 OUT: Controls the output of the open-drain pin D3.
0 = Output is held low.
1 = Output is high impedance.
D2 OUT: Controls the output of the open-drain pin D2.
0 = Output is held low.
1 = Output is high impedance.
D1 OUT: Controls the output of the open-drain pin D1.
0 = Output is held low.
1 = Output is high impedance.
D0 OUT: Controls the output of the open-drain pin D0.
0 = Output is held low.
1 = Output is high impedance.
M3QT
SOFT
Recalled from Table 02h, Register C0h
All
All
Volatile
RESERVED
RESERVED
D3 OUT
D2 OUT
D1 OUT
D0 OUT
BIT 0