Rainbow Electronics DS1875 - Manual (Page 33)

DS1875
This register map shows each byte/word (2 bytes) in terms of the row it is on in the memory. The first byte in the row is
located in memory at the row address (hexadecimal) in the leftmost column. Each subsequent byte on the row is
one/two memory locations beyond the previous byte/word’s address. A total of 8 bytes are present on each row. For
more information about each of these bytes, see the corresponding register description.
Register Descriptions
Lower Memory Register Map
LOWER MEMORY
WORD 0 WORD 1 WORD 2 WORD 3 ROW
(HEX)
ROW NAME
BYTE 0/8 BYTE 1/9 BYTE 2/A BYTE 3/B BYTE 4/C BYTE 5/D BYTE 6/E BYTE 7/F
00 <1> THRESHOLD 0 TEMP ALARM HI TEMP ALARM LO TEMP WARN HI TEMP WARN LO
08 <1> THRESHOLD
1
V
CC
ALARM HI V
CC
ALARM LO V
CC
WARN HI V
CC
WARN LO
10 <1> THRESHOLD 2 MON1 ALARM HI MON1 ALARM LO MON1 WARN HI MON1 WARN LO
18 <1> THRESHOLD 3 MON2 ALARM HI MON2 ALARM LO MON2 WARN HI MON2 WARN LO
20 <1> THRESHOLD 4 MON3 ALARM HI MON3 ALARM LO MON3 WARN HI MON3 WARN LO
28 <1> THRESHOLD 5 MON4 ALARM HI MON4 ALARM LO MON4 WARN HI MON4 WARN LO
30 <1> PW2 EE EE EE EE EE EE EE EE EE
38 <1> PW2 EE EE EE EE EE EE EE EE EE
40 <1> PW2 EE EE EE EE EE EE EE EE EE
48 <1> PW2 EE EE EE EE EE EE EE EE EE
50 <1> PW2 EE EE EE EE EE EE EE EE EE
58 <1> PW2 EE EE EE EE EE EE EE EE EE
60
<2> ADC
VALUES 0
TEMP VALUE V CC VALUE MON1 VALUE MON2 VALUE
68
<0> ADC
VALUES 1
<2> MON3 VALUE <2> MON4 VALUE <2> RESERVED <0> STATUS <3> UPDATE
70
<2> ALARM/
WARN
ALARM 3 ALARM 2 ALARM 1 ALARM 0 WARN 3 WARN 2 RESERVED RESERVED
78
<0> TABLE
SELECT
<5> DOUT <2> DIN
<6>
RESERVED
<6> PWE MSB <6> PWE LSB
<5> TBL
SEL
ACCESS
CODE
<0> <1> <2> <3> <4> <5> <6> <7> <8> <9> <10> <11>
Read
Access
All All All PW2 All N/A PW1 PW2 N/A PW2 All
Write
Access
See each
bit/byte
separately
PW2 N/A
All and
DS1875
hardware
PW2 +
mode
bit
All All PW1 PW2 PW2 N/A PW1
PON Triplexer and SFP Controller
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