PCF8584P NXP Semiconductors, PCF8584P Datasheet - Page 19

• Manufacturer Part Number: PCF8584P
• Manufacturer: NXP Semiconductors

Specifications of PCF8584P

• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: PDIP
• Rad Hardened: No
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
1997 Oct 21
handbook, full pagewidth
I
2
C-bus controller
TRANSMITTER
yes
no
SLAVE
MODE
read byte from S1 register
write data to S0 register
write last data byte
ACK received?
to S0 register
PIN bit = 0?
(LRB = 1?)
negative
END
TX
yes
no
R/W = 1
Fig.9 Slave receiver/slave transmitter modes.
no
no
read byte from S1 register
read byte from S1 register
read byte from S0 register
PCF8584 goes into
addressed as slave
PIN deactivated
(LSB = 1 or 0?)
slave receiver
read or write?
PIN bit = 0?
(AAS = 1?)
A0 = HIGH
A0 = LOW
(set to '1')
START
mode
yes
yes
19
read byte from S1 register
read data from S0 register
A0 = HIGH
A0 = LOW
R/W = 0
read last data byte
STOP detected?
from S0 register
PIN bit = 0?
(STS = 1?)
END
RX
yes
no
RECEIVER
SLAVE
MODE
Check whether
'addressed as slave'
Check that 'own address'
has arrived correctly
Read incoming address to
determine if the R/W bit is 0 or 1
This will differentiate between
slave receiver or slave
transmitter modes.
MBE713
yes
no
Product specification
PCF8584