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參數(shù)資料
| 型號： | MAXSMBUS |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 2-Wire Interface Board |
| 中文描述： | 2線接口板 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大?。?/td> | 219K |
| 代理商： | MAXSMBUS |
E
2-Wire Interface Board
_______________________________________________________________________________________
3
Table 1. DB25 Connector Signals
PIN
NAME
FUNCTION
1
SPARE OUTPUT A
SMBCLK
_
-
OUT
SMBDATA
_
-
OUT
Spare output
2
When high, drives SMBCLK signal low
3
When high, drives SMBDATA signal low
4
SMBUS_OUT
When high, drives SMBSUS signal low
5
LOOPBACK
MASK
_
-
ALERT1
MASK
_
-
ALERT2
MASK
_
-
START
Loopback connection for port verification
6
When high, allows
ALERT1
to trigger
INT
low
7
When high, allows
ALERT2
to trigger
INT
low
8
When high, allows a start condition to trigger
INT
low
9
CAPTURE_ENABLE
When high, enables slave / bus monitor circuitry. This circuit waits until SMBCLK
is pulled low, and then it holds SMBCLK until the software resets it.
10
INT
Active low interrupt input
11
SMBDATA
_
-
IN
SMBCLK
_
-
IN
When high, indicates that SMBDATA is low
12
When high, indicates that SMBCLK is low
13
LOOPBACK
Loopback connection for port verification
14
SPARE OUTPUT B
HOLDING
_
-
CLOCK
Spare output
15
When low, indicates that interface board is holding SMBCLK low
16
UNUSED
Not used
17
UNUSED
Not used
18–25
GND
Signal ground return
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