參數(shù)資料
型號: PCF8584
廠商: NXP Semiconductors N.V.
英文描述: IIC-bus controller(IIC總線控制器)
中文描述: IIC總線控制器(國際進口總線控制器)
文件頁數(shù): 18/40頁
文件大?。?/td> 224K
代理商: PCF8584
1997 Oct 21
18
Philips Semiconductors
Product specification
I
2
C-bus controller
PCF8584
Fig.8 Master transmitter followed by repeated START and becoming master receiver.
ndbook, full pagewidth
START
I
2
C-bus write routine
(master transmitter mode
excluding final STOP)
send byte 45H
send byte 'slave address'
I
2
C-bus read routine (master receiver mode)
END
PCF8584 configured as
master transmitter
PCF8584 configured as
master receiver
A0 = HIGH
A0 = LOW
Load 45H into the S1 register; PCF8584
generates the repeated 'START condition' only.
The current contents of register S0 is NOT
clocked out onto the I
C-bus.
The next byte sent to register S0 should be the
'slave address'
+
read bit.
Load 'slave address' into the S0 register. Once
loaded, it is automatically clocked out over the I
2
C-bus.
'Slave address' = slave address (7 bits)
+
R/W bit set '1'.
MBE712
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