Datasheet

45Maxim Integrated
SFP Controller for Dual Rx Interface
DS1877
Table 02h, Register 87h: DEVICE VER
Table 02h, Register 88h: CNFGA
FACTORY DEFAULT DEVICE VERSION
READ ACCESS PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2)
WRITE ACCESS N/A
MEMORY TYPE ROM
87h DEVICE VERSION
BIT 7 BIT 0
Hardwired connections to show the device version.
FACTORY DEFAULT C0h
READ ACCESS PW2 or (PW1 and RWTBL2) or (PW1 and RTBL2)
WRITE ACCESS PW2 or (PW1 and RWTBL2)
A2h AND B2h MEMORY Common A2h and B2h memory locations
MEMORY TYPE Nonvolatile (SEE)
88h RESERVED RESERVED RESERVED ASEL MASK INVRSOUT RESERVED INVLOSOUT
BIT 7 BIT 0
BITS 7:5, 1 RESERVED
BIT 4
ASEL: Address select.
0 = (default) Device address is A2h for receiver 1 and B2h for receiver 2.
1 = DEVICE ADDRESS byte (Table 02h, Register 8Bh) is used as the device address for receiver
1. Receiver 2 remains at B2h.
BIT 3
MASK:
0 = (default) Alarm-enable row exists at Table 01h, Registers F8h–FFh. Table 05h, Registers F8h–
FFh are empty.
1 = Alarm-enable row exists at Table 05h, Registers F8h–FFh. Table 01h, Registers F8h–FFh are
empty.
BIT 2
INVRSOUT: Allow for inversion of the RSELOUT pin (see Figure 11).
0 = (default) RSELOUT is not inverted.
1 = RSELOUT is inverted.
BIT 0
INVLOSOUT: Allow for inversion of signal driven to the LOSOUT output pin.
0 = (default) LOSOUT is not inverted.
1 = LOSOUT signal is inverted.