pca9698 NXP Semiconductors, pca9698 Datasheet - Page 15

• 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
7.4.8 MODE - PCA9698 mode selection register
Table 11.
This register allows programming of the PCA9698 modes.
Bit
Symbol
Default
•
•
•
•
•
•
If ALLBNK = 1XX0 1100:
All I/Os configured as outputs in Bank 2 and 3 will be programmed with 1s, overwriting
values programmed in the Output Port registers 2 and 3, while I/Os configured as
outputs in Bank 0, 1, and 4 are programmed with values in Output Port registers 0, 1,
and 4.
OEPOL bit controls the polarity of OE pin.
– OEPOL = 0: OE pin is active LOW.
– OEPOL = 1: OE pin is active HIGH (equivalent to OE pin).
OCH bit selects the I
change.
– OCH = 0: outputs change on STOP command.
– OCH = 1: outputs change on ACK.
IOAC bit controls the ability of the device to respond to a ‘GPIO All Call’ command
(see
than one device at the same time.
– IOAC = 0: The device cannot respond to a ‘GPIO All Call’ command.
– IOAC = 1: The device can respond to a ‘GPIO All Call’ command.
Remark: The ‘GPIO ALL CALL’ command defined for the PCA9698 is different from
the I
SMBA bit controls the capability of the PCA9698 to respond to a SMBAlert command.
– SMBA = 0: PCA9698 does not respond to an Alert Response Address.
– SMBA = 1: PCA9698 responds to an Alert Response Address. Bits 5, 6 and 7 are
Unused bits (bits 2, 5, 6 and 7) must be programmed with 0s for proper device
operation.
reserved and must be programmed with 0s.
2
Section 7.6 “GPIO All Call”
C-bus protocol ‘General Call’ command.
MODE - mode selection register (address 2Ah) description
X
7
0
40-bit Fm+ I
Rev. 02 — 19 July 2006
X
6
0
2
C-bus event where the state of the I/Os configured as outputs
X
5
0
2
for more information), allowing programming of more
C-bus advanced I/O port with RESET, OE and INT
SMBA
4
0
IOAC
3
0
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
2
X
0
PCA9698
OCH
1
1
OEPOL
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0
0