參數(shù)資料
型號: DS1878T+T&R
廠商: Maxim Integrated Products
文件頁數(shù): 30/101頁
文件大?。?/td> 0K
描述: IC CTLR SFP W/DGTL LDD RX 28TQFN
標準包裝: 2,500
類型: SFP+ 控制器
輸入類型: 模擬,數(shù)字
輸出類型: 數(shù)字
接口: I²C,LDD,串行
電流 - 電源: 2.5mA
安裝類型: 表面貼裝
封裝/外殼: 28-WFQFN 裸露焊盤
供應商設備封裝: 28-TQFN-EP(5x5)
包裝: 帶卷 (TR)
DS1878
SFP+ Controller with Digital LDD Interface
34
______________________________________________________________________________________
Register Descriptions
The register maps show each byte/word (2 bytes) in terms of its row in the memory. The first byte in the row is locat-
ed 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.
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>THRESHOLD0
TEMP ALARM HI
TEMP ALARM LO
TEMP WARN HI
TEMP WARN LO
08
<1>THRESHOLD1
VCC ALARM HI
VCC ALARM LO
VCC WARN HI
VCC WARN LO
10
<1>THRESHOLD2
MON1 ALARM HI
MON1 ALARM LO
MON1 WARN HI
MON1 WARN LO
18
<1>THRESHOLD3
MON2 ALARM HI
MON2 ALARM LO
MON2 WARN HI
MON2 WARN LO
20
<1>THRESHOLD4
MON3 ALARM HI
MON3 ALARM LO
MON3 WARN HI
MON3 WARN LO
28
<1>THRESHOLD5
MON4 ALARM HI
MON4 ALARM LO
MON4 WARN HI
MON4 WARN LO
30–5F
<1>EEPROM
EE
60
<2>ADC
VALUES0
TEMP VALUE
VCC VALUE
MON1 VALUE
MON2 VALUE
68
<0>ADC
VALUES1
<2>MON3 VALUE
<2>MON4 VALUE
<2>RESERVED
<0>STATUS <3>UPDATE
70
<2>ALARM/
WARN
ALARM3
ALARM2
ALARM1
ALARM0
WARN3
WARN2
RESERVED
78
<0>TABLE
SELECT
<2>RESERVED
<2>
RESERVED
<6>PWE MSW
<6>PWE LSW
<5>TBL
SEL
ACCESS
CODE
<0>
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
<9>
<10>
<11>
Read
Access
All
PW2
All
N/A
PW1
PW2
N/A
PW2
All
Write
Access
See each
bit/byte
separately
PW2
N/A
All and
device
hardware
PW2 +
mode
bit
All
PW1
PW2
N/A
PW1
The access codes represent the factory default values of PW_ENA and PW_ENB (Table 02h, Registers C0h–C1h).
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