Datasheet

DS1886
SFP and PON ONU Controller
with Digital LDD Interface
66Maxim Integrated
A2h Table 02h, Register 8Bh: CNFGC
A2h Table 02h, Register 8Ch: RESERVED
FACTORY DEFAULT 10h
READ ACCESS PW2 or (PW1 and RWTBL246) or (PW1 and RBL246)
WRITE ACCESS PW2 or (PW1 and RWTBL246)
MEMORY TYPE Nonvolatile (SEE)
8Bh XOVEREN RESERVED TXDM3 BIASMODOVFL_FLT TXDFLT TXDIO RSSI_FC RSSI_FF
BIT 7 BIT 0
BIT 7
XOVEREN: Enables RSSI conversion to use the XOVER (A2h Table 02h, Register 90h–91h) value
during RSSI conversions.
0 = Uses hysteresis for linear RSSI measurements.
1 = XOVER value is enabled for nonlinear RSSI measurements.
BIT 6
RESERVED
BIT 5
TXDM3: Enables TXD to reset alarms and warnings associated to RSSI during a TXD event.
0 = TXD event has no affect on the RSSI alarms and warnings.
1 = RSSI alarms and warnings are reset during a TXD event.
BIT 4
BIASMODOVFL_FLT:
0 = IBIASOVFL and IMODOVFL bits in the DPCSTAT register in the MAX3710 have no affect on
TXFOUT.
1 = IBIASOVFL or IMODOVFL bits when set to 1 in the DPCSTAT register in the MAX3710 cause the
TXFOUT pin to be set to 1.
BIT 3
TXDFLT: See Figure 10.
0 = TXF pin has no affect on TXDOUT.
1 = TXF pin is enabled and ORed with other possible signals to create TXDOUT.
BIT 2
TXDIO: See Figure 10.
0 = (Default) TXD input signal is enabled and ORed with other possible signals to create TXDOUT.
1 = TXD input signal has no affect on TXDOUT.
BITS 1:0
RSSI_FC and RSSI_FF: RSSI force coarse and RSSI force fine. Control bits for RSSI mode of
operation on the RSSI conversion.
00b = (Default) Normal RSSI mode of operation.
01b = The fine settings of scale and offset are used for RSSI conversions.
10b = The coarse settings of scale and offset are used for RSSI conversions.
11b = Normal RSSI mode of operation.
POWER-ON VALUE 00h
READ ACCESS N/A
WRITE ACCESS N/A
MEMORY TYPE
This register is reserved.