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參數(shù)資料
| 型號： | PCA9541 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 2-to-1 I2C master selector with interrupt logic and reset |
| 中文描述： | 2比1的I2C主機(jī)選擇與中斷邏輯和復(fù)位 |
| 文件頁數(shù)： | 17/30頁 |
| 文件大小： | 279K |
| 代理商： | PCA9541 |
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P
P
P
2
2
1
2
S
0
A
A
1
1
1
A3 A2
A1
A0
SLAVE ADDRESS
start condition
R/W
acknowledge
from slave
acknowledge
from slave
1
COMMAND CODE REGISTER
1
SW02308
0
0
0
0
0
0
A
stop condition
acknowledge
from slave
Auto
Increment
DATA CONTROL REGISTER
AI
0
BUSINIT
P
SDA_MST0
P
SCL_MST0
INT1
SDA_SLAVE
SCL_SLAVE
INT0
AFTER THE STOP CONDITION,
MASTER 1 IS DISCONNECTED
FROM THE DOWNSTREAM
CHANNEL
IF THE INTERRUPT IS NOT MASKED
(BUSLOSTMSK = 0)
1
2
3
4
5
6
7
8
9
IF THE INTERRUPT IS NOT MASKED
(BUSINITMSK = 0)
MASTER 1 HAS CONTROL OF THE BUS
PCA9541 HAS CONTROL OF THE BUS
MASTER 0 HAS
CONTROL OF
THE BUS
MASTER 0 MUST WAIT FOR THE “BUS FREE
TIME” VALUE (BETWEEN STOP AND START)
DEFINED IN THE I
C SPECIFICATION
BEFORE SENDING COMMANDS TO
THE DOWNSTREAM DEVICES
BUSON
MYBUS
0
0
0
0
0
0
Figure 14. Write to the control register and switch from channel 1 to channel 0 (bus recovery/initialization requested)
NOTE:
We assume that a Read of the control register was done by Master 1 and that 000x1010 was read.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PCA9542 | 2-channel IIC multiplexer and interrupt controller(2通道IIC多路復(fù)用器和中斷控制器) |
| PCA9542PW | 2-channel I2C multiplexer and interrupt controller |
| PCA9542PWDH | 2-channel I2C multiplexer and interrupt controller |
| PCA9543 | 2-channel I2C switch with interrupt logic and reset |
| PCA9543D | 2-channel I2C switch with interrupt logic and reset |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9541_08 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541_09 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541ABS/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:2-to-1 I2C-bus master selector with interrupt logic and reset |
| PCA9541ABS/01,118 | 功能描述:I2C 接口集成電路 2-to-1 I2C-bus master selector RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
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