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PCF8584 데이터시트(PDF) 18 Page - NXP Semiconductors

부품명 PCF8584
상세설명  I2C-bus controller
PDF  40 Pages
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제조업체  PHILIPS [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF8584 데이터시트(HTML) 18 Page - NXP Semiconductors

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1997 Oct 21
18
Philips Semiconductors
Product specification
I2C-bus controller
PCF8584
Fig.8 Master transmitter followed by repeated START and becoming master receiver.
ndbook, full pagewidth
START
I2C-bus write routine
(master transmitter mode
excluding final STOP)
send byte 45H
send byte 'slave address'
I2C-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 I2C-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 I2C-bus.
'Slave address' = slave address (7 bits)
+ R/W bit set '1'.
MBE712



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