SH3100 Datasheet, PDF (63/80 Pages) Semtech Corporation – Supervisory IC with I2C Interface and PWM

POWER MANAGEMENT
Functional Descriptions (continued)
I²C Short-Form Interrupt Clear
All active interrupts can be simultaneously cleared using a
short-form version of the I²C access. This gives much fast-
er interrupt clearing than normal individual I²C access.
An access is started to slave address (0b0100111), but
terminated with a STOP instruction immediately after the
ACK position (which is not sent by the SH3100 for that ad-
dress), as shown in the following diagram:
SCL
SDA
I2C Short-form Interrupt Clear
R/W
Slave address for shortform interrupt clear = 0100111
SH3100
© 2006 Semtech Corp.
63
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