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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主機選擇與中斷邏輯和復(fù)位 |
| 文件頁數(shù)： | 8/30頁 |
| 文件大?。?/td> | 279K |
| 代理商： | PCA9541 |
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Philips Semiconductors
Product data sheet
PCA9541
2-to-1 I
2
C master selector with interrupt logic and reset
2004 Oct 01
8
Register 1: Control Register (B1B0 = 01)
x stands for 0 or 1 and is applied to the master that reads or writes in the Control Register explained below
The Control Register described below is identical for both the masters. Nevertheless, there are physically 2 internal Control Registers, one for
each upstream channel.
When master 0 reads/writes in this register, the internal Control Register 0 will be accessed.
When master 1 reads/writes in this register, the internal Control Register 1 will be accessed.
BIT
7
6
5
4
3
2
1
0
SYMBOL
NTESTON
TESTON
0
BUSINIT
NBUSON
BUSON
NMYBUS
MYBUS
Table 3.
Register 1
BIT
SYMBOL
READ/
WRITE
DEFAULT
DESCRIPTION
0
MYBUS
R/W
See
Table 6
MYBUS bit along with the NMYBUS bit decides which upstream channel is connected
to the downstream channel
See Table 4
1
NMYBUS
R only
See
Table 6
NMYBUS bit is a copy of the MYBUS bit for the other channel
See Table 4
2
BUSON
R/W
See
Table 6
BUSON bit along with the NBUSON bit decides whether any upstream channel is
connected to the downstream channel or not
See Table 5
3
NBUSON
R only
See
Table 6
NBUSON bit is a copy of the BUSON bit for the other channel
See Table 5
4
BUSINIT
R/W
0
0: Bus initialization not requested
1 : Bus initialization requested
5
NOT USED
R only
0
6
TESTON
R/W
0
0: a Logic Level High to the INT line is sent (interrupt cleared)
1: a Logic Level Low to the INT line is sent (interrupt generated)
7
NTESTON
R only
0
0: a Logic Level High to the INT line of the other channel is sent (interrupt cleared)
1: a Logic Level Low to the INT line of the other channel is sent (interrupt generated)
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| PCA9542PWDH | 2-channel I2C multiplexer and interrupt controller |
| PCA9543 | 2-channel I2C switch with interrupt logic and reset |
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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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