Epson RX8130CE - Wakeup Timer Start Timing

14. Functions
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ETM50E-07 Seiko Epson Corporation 29
14.2.2. Wakeup timer start timing
Counting down of the wakeup timer value starts at the rising edge of the SCL (ACK output) signal that occurs
when the TE value is changed from "0" to "1".
TSEL0
TE
TSEL2
1
TSEL1
Count down
/ IRQ pin
SDA(Master）
SCL
Internal timer
WADA
A
SDA (Slave）
ACK
Figure 19 Wakeup timer start sequence