DS1878T+T Maxim Integrated Products, DS1878T+T Datasheet - Page 33
DS1878T+T
Manufacturer Part Number
DS1878T+T
Description
Current Mode PWM Controllers SFP+ Controller w/ MAX3946&3945
Manufacturer
Maxim Integrated Products
Datasheet
1.DS1878TTR.pdf
(98 pages)
Specifications of DS1878T+T
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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* The final result must be XORed with BB40h before writing to this register.
* Do not write to this register.
The access codes represent the factory default values of PW_ENA and PW_ENB (Table 02h, Registers C0h–C1h).
D8–E7
Read
Access
Write
Access
(HEX)
ACCESS
ROW
A0
A8
B0
B8
C0
C8
D0
80
88
90
98
E8
F8
F0
CODE
<9>
<8>
<0>
<8>
<8>
<8>
<8>
<8>
<8>
CONFIG
CONFIG
CONFIG
PWD VALUE
THRESHOLD
<8>
ENABLE
<0>
EMPTY
<8>
<8>
<0>
NAME
separately
CONFIG
CONFIG
OFFSET
OFFSET
ROW
SCALE
SCALE
See each
HBATH
LUT
bit/byte
SFP+ Controller with Digital LDD Interface
PWD
APC
3W
3W
3W
<0>
0
1
2
0
1
______________________________________________________________________________________
0
1
0
1
<8>
RANGING
BYTE 0/8
<8>
RXCTRL1
SETTXDE
SAMPLE
PW_ENA
HBATH
PW2
EMPTY
MON3 FINE OFFSET
<1>
RATE
MON3 FINE SCALE
All
3WCTRL
LOS
XOVER COARSE
MODE
<4>
XOVER FINE
PW1 MSW
WORD 0
MAN BIAS
<2>
N/A
All
<8>
<4>
RANGING
BYTE 1/9
RXCTRL2
SETTXEQ
PW_ENB
CNFGA
HBATH
EMPTY
COMP
ADDRESS
TINDEX
hardware
All and
device
<3>
All
SETLOSTIMER
<8>
BYTE 2/A
<4>
SETCML
CNFGB
HBATH
ISTEPH
MODTI
EMPTY
CNTL
PW2 +
<4>
mode
WRITE
TABLE 02h (PW2)
MAN_
PW2
<4>
MON4 OFFSET
MON4 SCALE
bit
V
V
MODULATION
REGISTER
CC
PW1 LSW
WORD 1
CC
OFFSET
SCALE
<10>
BYTE 3/B
SETLOSH
SETLOSL
<5>
All
All
CNFGC
DAC1TI
HBATH
<10>
EMPTY
ISTEPL
READ
BIAS REGISTER
<6>
N/A
All
<10>
MON3 COARSE OFFSET
BYTE 4/C
ADDRESS
MON3 COARSE SCALE
RXCTRL3
TXCTRL
DEVICE
DAC2TI
HBATH
EMPTY
HTXP
TXSTAT1
<4>
MON1 OFFSET
MON1 SCALE
PW1
PW1
<7>
PW2 MSW
DAC1 VALUE
WORD 2
<10>
RESERVED
IMODMAX
BYTE 5/D
TXCTRL2
<4>
ISTEPTI
HBATH
EMPTY
PW2
PW2
LTXP
<8>
DAC
TXSTAT2 RESERVED
Table 02h Register Map
APC
PW2
<9>
N/A
<10>
IBIASMAX
BYTE 6/E
TXCTRL3
RSHIFT
HBATH
LUTTC
EMPTY
HLOS
INTERNAL TEMP
<4>
DEVICE
ID
MON2 OFFSET
MON2 SCALE
RESERVED
DAC2 VALUE
PW2 LSW
WORD 3
OFFSET*
<10>
1
PW2
N/A
<10>
SETPWCTRL
TBLSELPON
RESERVED
BYTE 7/F
RSHIFT
HBATH
EMPTY
3WSET
LLOS
VER
DEVICE
<11>
PW1
All
0
33
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