ds1863 Maxim Integrated Products, Inc., ds1863 Datasheet - Page 59

• Manufacturer Part Number: ds1863
• Description: Ds1863 Burst-mode Pon Controller With Integrated Monitoring
• Manufacturer: Maxim Integrated Products, Inc.

Table 02h, Register C0h to F7h: Empty
Table 02h, Register F8h–F9h: MAN IBIAS
FACTORY DEFAULT:
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
When “BIAS-EN” (Table 02h, 80h) is written to 0, writes to these bytes will control the lower portion of the IBIAS DAC [7:0].
Table 02h, Register FAh: MAN_CNTL
FACTORY DEFAULT:
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
When “BIAS-EN” bit (Table 02h, 80h) is written to zero, bit zero of this byte will control the updates of the MAN IBIAS value to the
Bias output. The Values of MAN IBIAS should be written with a separate write command. Setting bit zero to a ‘1’ will clock the MAN
IBIAS value to the output DAC.
1.
2.
3.
Table 02h, Register BFh: MAX IBIAS
FACTORY DEFAULT:
READ ACCESS
WRITE ACCESS
MEMORY TYPE:
Thi s val ue w i l l d efi ne the m axi m um D AC val ue al l ow ed for the up p er 8 b i ts of IBIAS outp ut d ur i ng al l op er ati ons. D ur i ng the i ni ti al step
and b i nar y sear ch, thi s val ue w i l l not cause an al ar m b ut w i l l sti l l cl am p the IBIAS D AC outp ut. After the star tup seq uence ( or nor m al
AP C op er ati ons) , i f the AP C l oop tr i es to cr eate an IBIAS val ue g r eater than thi s setti ng , IBIAS i s cl am p ed , and cr eates a BIAS M AX
al ar m . S etti ng s 00h thr oug h FE h ar e i ntend ed for nor m al AP C m od e of op er ati on. S etti ng FFh i s r eser ved for m anual IBIAS m od e.
Write the MAN IBIAS value with a write command.
Set the MAN CLK bit to a ‘1’ with a separate write command.
Clear the MAN CLK bit to a ‘0’ with a separate write command.
FAh
BFh
F8h
F9h
RESERVED
RESERVED
bit7
bit7
bit7
2
2
12
7
RESERVED
RESERVED
00h
PW2
PW2 and (BIAS-EN = 0)
00h
PW2
PW2 and (BIAS-EN = 0)
00h
PW2
PW2
Volatile
Volatile
2
2
Nonvolatile (SEE)
11
6
____________________________________________________________________
RESERVED
2
2
2
12
10
5
Burst-Mode PON Controller
With Integrated Monitoring
RESERVED
2
2
2
11
4
9
RESERVED
2
2
2
10
3
8
RESERVED
2
2
2
9
2
7
RESERVED
2
2
2
8
1
6
MAN_CLK
bit0
bit0
bit0
2
2
2
7
0
5
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