Lower memory register descriptions, Ds1876 sfp controller with dual ldd interface – Rainbow Electronics DS1876 User Manual
Page 28
28 _____________________________________________________________________________________
DS1876
SFP Controller with Dual LDD Interface
Lower Memory Register Descriptions
Lower Memory, Register 00h–01h: TEMP ALARM HI
Lower Memory, Register 04h–05h: TEMP WARN HI
Lower Memory, Register 02h–03h: TEMP ALARM LO
Lower Memory, Register 06h–07h: TEMP WARN LO
FACTORY DEFAULT
7FFFh
READ ACCESS
All
WRITE ACCESS
PW2 or (PW1 and WLOWER)
A2h AND B2h MEMORY
Common A2h and B2h memory location
MEMORY TYPE
Nonvolatile (SEE)
00h, 04h
S
2
6
2
5
2
4
2
3
2
2
2
1
2
0
01h, 05h
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
2
-8
BIT 7
BIT 0
Temperature measurement updates above this two’s complement threshold set its corresponding alarm or
warning bit. Temperature measurement updates equal to or below this threshold clear its alarm or warning bit.
FACTORY DEFAULT
8000h
READ ACCESS
All
WRITE ACCESS
PW2 or (PW1 and WLOWER)
A2h AND B2h MEMORY
Common A2h and B2h memory location
MEMORY TYPE
Nonvolatile (SEE)
02h, 06h
S
2
6
2
5
2
4
2
3
2
2
2
1
2
0
03h, 07h
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
2
-8
BIT 7
BIT 0
Temperature measurement updates below this two’s complement threshold set its corresponding alarm or
warning bit. Temperature measurement updates equal to or above this threshold clear its alarm or warning bit.