BU9929FV Datasheet, PDF (11/12 Pages) Rohm – I2C BUS interface, general purpose I/O ports with condition watching function

Multimedia ICs
BU9929FV
(b) When command D6=1
INT pin outputs ”I clock cycle pulse” when detection of watching port is received. In the case that the output data is the
data whish is sampled immediately before the returning ACK.
Watching Ports
78
AA
Output for I²C BUS
CLK
INT OUTPUT
St
SLAVE ADDRESS
R A OUTPUT "AA"
Data "78h" is not kept, the
output data is immediately
before sampled data.
CLK 1 cycle pulse
4. Shut down mode
By command D7=1, this IC can be set to Shut down mode, which can save current consumption. At Shut down mode,
operation of CLK input pin will be stopped, and input of CLK into this IC can be shut down. Also, for every PIO/PION pins,
pins under output condition will be saved as Hi-Z.
At Shut down mode, condition-watching function can not be used.
Contents of each register before shut down will be saved by the shut down release.
!External dimensions (Unit : mm)
10.0±0.2
28
15
1
14
0.65 0.22±0.1
0.3Min.
0.1
SSOP-B28
11/11