ds1877 Maxim Integrated Products, Inc., ds1877 Datasheet - Page 36
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ds1877
Manufacturer Part Number
ds1877
Description
Sfp Controller For Dual Rx Interface
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS1877.pdf
(65 pages)
- Current page: 36 of 65
- Download datasheet (3Mb)
SFP Controller for Dual Rx Interface
Lower Memory, Register 6Fh: UPDATE
Lower Memory, Register 70h: ALARM
36
6Fh
70h
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
A2h AND B2h MEMORY
MEMORY TYPE
TEMP RDY
BITS 5, 4,
POWER-ON VALUE
READ ACCESS
WRITE ACCESS
A2h AND B2h MEMORY
MEMORY TYPE
BITS 7,
TEMP HI
BITS 3:0
BIT 7
BIT 0
6, 3
2, 1
BIT 7
BIT 7
BIT 6
BIT 5
BIT 4
TEMP RDY, VCC RDY, RSSI RDY: Update of completed conversions. At power-on, these bits
are cleared and are set as each conversion is completed. These bits can be cleared so that a
completion of a new conversion is verified.
RESERVED
RSSIR: RSSI range. Reports the range used for conversion update of RSSI.
0 = Fine range is the reported value.
1 = Coarse range is the reported value.
TEMP HI: High alarm status for temperature measurement.
0 = (default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
TEMP LO: Low alarm status for temperature measurement.
0 = (default) Last measurement was equal to or above threshold setting.
1 = Last measurement was below threshold setting.
VCC HI: High alarm status for V
0 = (default) Last measurement was equal to or below threshold setting.
1 = Last measurement was above threshold setting.
VCC LO: Low alarm status for V
POA trip point value. It clears itself when a V
the low threshold.
0 = Last measurement was equal to or above threshold setting.
1 = (default) Last measurement was below threshold setting.
RESERVED
VCC RDY
TEMP LO
3
00h
All
All and device hardware
Different A2h and B2h memory locations
Volatile
RESERVED
10h
All
N/A
Different A2h and B2h memory locations
Volatile
VCC HI
RESERVED
VCC LO
CC
CC
measurement.
measurement. This bit is set when the V
RESERVED
RSSI RDY
CC
measurement is completed and the value is above
RESERVED
RESERVED
RESERVED
RESERVED
CC
supply is below the
RESERVED
RSSIR
BIT 0
BIT 0
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