DS1877T+ Maxim Integrated Products, DS1877T+ Datasheet - Page 48

• Manufacturer Part Number: DS1877T+
• Description: IC CTLR/MON SFP 1-2CH 28TQFN
• Manufacturer: Maxim Integrated Products
• Type: SFP+ Controllerr

Specifications of DS1877T+

• Input Type: Logic
• Output Type: Logic
• Interface: I²C
• Current - Supply: 2.5mA
• Mounting Type: Surface Mount
• Package / Case: 28-WFQFN exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 90-1877T+000

SFP Controller for Dual Rx Interface
Table 02h, Register 8Dh: FORCE RSSI
Table 02h, Register 8Ch: RESERVED
48
8Dh
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
A2h AND B2h MEMORY
MEMORY TYPE
RESERVED
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
A2h AND B2h MEMORY
MEMORY TYPE
This register is reserved.
BITS 7, 3
BITS 5:4
BITS 1:0
BIT 7
BIT 6
BIT 2
RESERVED
XOVEREN2: Enables RSSI conversion to use the XOVER2 value during RSSI2 conversions.
0 = Uses hysteresis for linear RSSI measurements.
1 = XOVER2 value is enabled for nonlinear RSSI measurements.
RSSI2_FC and RSSI2_FF: RSSI2 force coarse and RSSI2 force fine. Control bits for RSSI mode of
operation on the RSSI2 conversion.
00b = (default) Normal RSSI mode of operation.
01b = The fine settings of scale and offset are used for RSSI2 conversions.
10b = The coarse settings of scale and offset are used for RSSI2 conversions.
11b = Normal RSSI mode of operation.
XOVEREN1: Enables RSSI conversion to use the XOVER1 value during RSSI1 conversions.
0 = Uses hysteresis for linear RSSI measurements.
1 = XOVER1 value is enabled for nonlinear RSSI measurements.
RSSI1_FC and RSSI1_FF: RSSI1 force coarse and RSSI1 force fine. Control bits for RSSI mode of
operation on the RSSI1 conversion.
00b = (default) Normal RSSI mode of operation.
01b = The fine settings of scale and offset are used for RSSI1 conversions.
10b = The coarse settings of scale and offset are used for RSSI1 conversions.
11b = Normal RSSI mode of operation.
XOVEREN2
N/A
N/A
N/A
N/A
00h
PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2)
PW2 or (PW1 and RWTBL2)
Common A2h and B2h memory locations
Nonvolatile (SEE)
RSSI2_FC
RSSI2_FF
RESERVED
XOVEREN1
RSSI1_FC
RSSI1_FF
BIT 0