V1.4
– Apr-13
User’s Manual
Page 18 of 34
3.6 Self-start Configuration
In order to minimize the GPIO required for operating A2035-H, WAKEUP (pin 4) and
ON_OFF (pin 18) can be tied together for entering the self-start mode such that no
ON_OFF pulse requires. The following picture shows the recommended connection
for self-start configuration with UART host port enabled.
Figure 8: Self-start configuration A2035-H
For self-start mode, full power operation will be activated once Vcc applied. No power
save mode (PTF / MPM / Hibernation) will be supported. Besides, power supervision
chip (Maxim, MAXT) is mandatory so as to prevent any memory corrup-
tion if the Vcc removes abruptly.
