PCA9665D NXP [NXP Semiconductors], PCA9665D Datasheet - Page 65
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PCA9665D
Manufacturer Part Number
PCA9665D
Description
Fm+ parallel bus to I2C-bus controller
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCA9665D.pdf
(90 pages)
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NXP Semiconductors
PCA9665_3
Product data sheet
Fig 26. Bus timing diagram; Buffered Slave Transmitter mode
Fig 27. Bus timing diagram; Buffered Slave Receiver mode
Fig 28. Bus timing diagram; Software Reset Call
(1) As defined in I2CADR register.
(2) Number of bytes received = value programmed in I2CCOUNT register (BC[6:0]
(1) As defined in I2CADR register.
(2) Number of bytes received = value programmed in I2CCOUNT register (BC[6:0]
SDA
condition
SCL
INT
START
SDA
condition
SCL
External master receiver reads data from PCA9665.
INT
Slave PCA9665 is written to by external master transmitter.
START
SDA
condition
SCL
INT
START
from slave PCA9665
from slave PCA9665
7-bit SWRST
Call address
from slave PCA9665
7-bit address
R/W = 0
7-bit address
R/W = 0
R/W = 1
(1)
ACK
(1)
interrupt
ACK
ACK
interrupt
interrupt
first byte = 0xA5
Rev. 03 — 12 August 2008
first byte
first byte
(2)
(2)
ACK
ACK
ACK
second byte = 0x5A
from master receiver
n byte
n byte
Fm+ parallel bus to I
(2)
68).
68).
(2)
ACK
no ACK
ACK
interrupt
interrupt
PCA9665
STOP
condition
© NXP B.V. 2008. All rights reserved.
2
002aab269
(after STOP)
STOP
condition
C-bus controller
002aab270
interrupt
STOP
condition
(after STOP)
002aab488
interrupt
65 of 90
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