pca9698 NXP Semiconductors, pca9698 Datasheet - Page 30

• Manufacturer Part Number: pca9698
• Description: 40-bit Fm+ I2c-bus Advanced I/o Port With Reset, Oe And Int
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PCA9698_2
Product data sheet
Fig 23. GPIO All Call write to the Output Port, I/O Configuration, Polarity Inversion, or Mask interrupt registers
Fig 24. GPIO All Call write to the Output structure configuration, All Bank Control, or Mode selection registers
Only slave devices with bit IOAC = 1 answer to the GPIO All Call transaction.
Output Port register programming becomes effective at the STOP command if OCH = 0, at each acknowledge if OCH = 1.
Configuration, Polarity Inversion, and Mask interrupt registers become effective at the acknowledge.
Less than 5 bytes can be programmed by using the same scheme.
‘D5 D4 D3 D2 D1 D0’ refers to the first register to be programmed.
If more than 5 bytes are written, previous data are overwritten (the sixth Configuration register will roll over to the first
addressed Configuration register, the sixth Polarity Inversion register will roll over to the first addressed Polarity Inversion
register, the sixth Mask interrupt register will roll over to the first addressed Mask interrupt register).
Only slave devices with bit 0 IOAC = 1 answer the GPIO All Call transaction.
The programming becomes effective at the acknowledge.
If more than 1 byte is written, previous data is overwritten.
SDA
S 1
START condition
SDA
GPIO All Call address
1
S 1
START condition
00 for Output structure configuration register programming
01 for All Bank Control register programming
10 for Mode selection register programming
0
1
1
slave address
1
0
acknowledge
1
1
from slave
0 0 A
1
R/W
acknowledge
from slave(s)
1
0 0 A
R/W
AI = 1
1
0 D5 D4 D3 D2 D1 D0
40-bit Fm+ I
Rev. 02 — 19 July 2006
command register
X
AI = 'don't care'
0
command register
DATA BANK 2 A
1
0
2
00 1000 for Output Port register programming bank 0
01 0000 for Polarity Inversion register programming bank 0
01 1000 for Configuration register programming bank 0
10 0000 for Mask interrupt register programming bank 0
1
C-bus advanced I/O port with RESET, OE and INT
acknowledge
from slave(s)
0 D1 D0
A
acknowledge
from slave(s)
acknowledge
from slave(s)
DATA BANK 0 A
DATA BANK 3 A
A
acknowledge
from slave(s)
acknowledge
from slave(s)
DATA
DATA BANK 1
DATA BANK 4
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
acknowledge
from slave(s)
condition
condition
002aab953
STOP
STOP
A
A
A
acknowledge
from slave(s)
acknowledge
from slave
P
PCA9698
P
002aab952
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