ds1878 Maxim Integrated Products, Inc., ds1878 Datasheet - Page 72
ds1878
Manufacturer Part Number
ds1878
Description
Sfp+ Controller With Digital Ldd Interface
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS1878.pdf
(98 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ds1878T+
Manufacturer:
Maxim
Quantity:
120
Company:
Part Number:
ds1878T+T
Manufacturer:
MAXIM
Quantity:
46
- Current page: 72 of 98
- Download datasheet (2Mb)
Table 02h, Register BAh: ISTEPH
SFP+ Controller with Digital LDD Interface
Table 02h, Register BBh: ISTEPL
72
______________________________________________________________________________________
BAh
BBh
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
ISTEP is the initial step value used at power-on or after a TXD pulse to control the BIAS register. The particular
ISTEP used depends on the value of TINDEX and ISTEPTI (Table 02h, Register C5h). When TINDEX > ISTEPTI,
ISTEPH is used. When TINDEX < ISTEPTI, ISTEPL is used. At startup, this value plus 2
to the BIAS register value until the APC feedback (MON2) is greater than its threshold. At that time, a binary
search is used to complete the startup of the APC closed loop. If the resulting math operation is greater than
IBIASMAX (Table 02h, Register EEh), the result is not loaded into the BIAS register, but the binary search is
begun to complete the initial search for APC. During startup, the BIAS register steps causing a higher bias value
than IBIASMAX do not create the BIAS MAX alarm. The BIAS MAX alarm detection is enabled at the end of the
binary search.
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
See the ISTEPH register description.
BIT 7
BIT 7
2
2
8
8
2
2
7
7
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
00h
PW2 or (PW1 and RWTBL246) or (PW1 and RTBL246)
PW2 or (PW1 and RWTBL246)
Nonvolatile (SEE)
2
2
6
6
2
2
5
5
2
2
4
4
2
2
3
3
0
= 1 is continuously added
2
2
2
2
BIT 0
BIT 0
2
2
1
1
Related parts for ds1878
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Ds Relays
Manufacturer:
Panasonic Corporation of North America
Datasheet:
Part Number:
Description:
Nonvolatile Ram Controller Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
3.3v Single-piece 8mb Nonvolatile Sram Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
Pon Triplexer Control And Monitoring Circuit Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
Ttl Compatible Cmos Analog Switches Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
Improved Low-power, Cmos Analog Switches With Latches Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
4a, 20ns, Dual Mosfet Drivers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
Nicd/nimh Battery Fast-charge Controllers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
3.6v, 1w Autoramping Power Amplifier For 900mhz Applications Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
2.7v, Single-supply, Cellular-band Linear Power Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
5ghz Linear Power Amplifiers Integrated Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
Evaluation Kits for the MAX3514
Manufacturer:
Maxim Integrated Products, Inc.
Part Number:
Description:
5v, Differential Input, Directdrive, 130mw Stereo Headphone Amplifiers With Shutdown Products
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
Accurate I2c Rtc With Integrated Tcxo/crystal/fram
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet:
Part Number:
Description:
Ds1863 Burst-mode Pon Controller With Integrated Monitoring
Manufacturer:
Maxim Integrated Products, Inc.
Datasheet: