Rainbow Electronics DS1862 - Manual (Page 32)

DS1862
XFP Laser Control and Digital Diagnostic IC
32 ____________________________________________________________________
DDh
• 6Eh Enable ......................< R-all / W-Module ><00> If bit 5 is high, then bit 3 of 6Eh
is not masked. If bit 6 is high, then bit 6 of 6Eh is not masked. Bit 0 is the Lock_Bit. If
set, Lower Memory address 01h, bit 0 is writable.
DEh
• AUX1/2 Unit Sel ...............< R-all / W-Module ><00> These two 4-bit values define
what is being meausred on AUX1MON and AUX2MON. MSB is AUX1MON unit
select and LSB is AUX2MON unit select. See Table 5 for more detail.
DFh
• User EE ............................< R-all / W-Module ><00>
E0h → FFh
• User EE ............................< R-all / W-Module ><00>
Table 02h
80h
→ FFh
• User EE ............................< R-all / W-Host ><00>
Table 03h
80h
→ C7h
• LUT ..................................< R-Module / W-Module ><00> These registers control the output cur-
rent on MODSET as a function of temperature.
Table 04h
80h → B8h
81h
• Bias shift ..........................< R-Module / W-Module ><0> This 4-bit value in <7:4>
defines how many right-shifts IBIASMON monitor channel receives. The MSB is bit 7.
• TX-P shift..........................< R-Module / W-Module ><0> This 4-bit value in <3:0>
defines how many right-shifts TX-P (BMD) monitor channel receives. The MSB is bit 3.
82h
• AUX1 shift ........................< R-Module / W-Module ><0> This 4-bit value in <7:4>
defines how many right-shifts AUX1MON monitor channel receives. The MSB is bit 7.
• RX-P shift .........................< R-Module / W-Module ><0> This 4-bit value in <3:0>
defines how many right-shifts RX-P (RSSI) monitor channel receives. The MSB is bit 3.
83h
• AUX2 shift ........................< R-Module / W-Module ><0> This 4-bit value in <7:4>
defines how many right-shifts AUX2MON monitor channel receives. The MSB is bit 3.
84h
• APC REF COARSE ..........< R-Module / W-Module ><00> This 8-bit value sets the
coarse APC current on BMD.