Philips Semiconductors
I2C-bus controller
Product specification
PCF8584
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SCL
INT
7-bit address (0CH)
interrupt
START
condition
R/W = 1
ACK
from slave PCF8584
first-byte: 1FH
interrupt
ACK
nbyte
no ACK
interrupt
STOP
condition
from master
receiver
MBE711
External master receiver reads data from PCF8584.
Fig.12 Bus timing diagram; slave transmitter mode.
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SCL
INT
7-bit address (62H)
interrupt
START
condition
R/W = 0
ACK
from slave PCF8584
first-byte (CCH)
interrupt
ACK
nbyte
interrupt
ACK
interrupt
(after STOP)
STOP
condition
MBE708
Slave PCF8584 is written to by external master transmitter.
Fig.13 Bus timing diagram; slave receiver mode.
1997 Oct 21
21