ds1878 Maxim Integrated Products, Inc., ds1878 Datasheet - Page 38

• Manufacturer Part Number: ds1878
• Description: Sfp+ Controller With Digital Ldd Interface
• Manufacturer: Maxim Integrated Products, Inc.

Lower Memory, Register 0Ah–0Bh: V
Lower Memory, Register 0Eh–0Fh: V
Lower Memory, Register 12h–13h: MON1 ALARM LO
Lower Memory, Register 16h–17h: MON1 WARN LO
Lower Memory, Register 1Ah–1Bh: MON2 ALARM LO
Lower Memory, Register 1Eh–1Fh: MON2 WARN LO
Lower Memory, Register 22h–23h: MON3 ALARM LO
Lower Memory, Register 26h–27h: MON3 WARN LO
Lower Memory, Register 2Ah–2Bh: MON4 ALARM LO
Lower Memory, Register 2Eh–2Fh: MON4 WARN LO
SFP+ Controller with Digital LDD Interface
38
0Ah, 0Eh,
1Ah, 1Eh,
0Bh, 0Fh,
1Bh, 1Fh,
12h, 16h,
22h, 26h,
13h, 17h,
23h, 27h,
______________________________________________________________________________________
2Ah, 2Eh
2Bh, 2Fh
Voltage measurement updates below this unsigned threshold set corresponding alarm or warning bits. Voltage
measurements equal to or above this threshold clear alarm or warning bits.
FACTORY DEFAULT
READ ACCESS
WRITE ACCESS
MEMORY TYPE
BIT 7
2
2
15
7
2
2
14
6
CC
CC
0000h
All
PW2
Nonvolatile (SEE)
WARN LO
ALARM LO
2
2
13
5
2
2
12
4
2
2
11
3
2
2
10
2
2
2
9
1
BIT 0
2
2
8
0