Reset Operation; Factory Operation; Test Pin; Battery Usage - Fujitsu MB2146-450-E Setup Manual

3.5.8 Reset Operation

There is a reset key to be used when user wants to reset system. In normal condition, the
reset pin is connected to V

3.5.9 Factory Operation

In EEPROM normal mode, press Send key and then press Wakeup key, and EEPROM
value will be initialized to its sub-address value.

3.5.10 Test Pin

For every pin of MB95F310, there is a test pin connected to it.

3.5.11 Battery Usage

The supply power is 3.3V for MCU EEPROM and MAX232. The LCD EV-Board uses power
chip AMS1117-3.3 to transfer input power from 5V to 3.3V, so the maximum number of
battery supply cannot be more than four cells (1.5V each cell).
EV BOARD MB2146-450-E V1.3
Chapter 3 EV-board Manual
While reset key pressed, it is connected to GND.
CC.
MCU-AN-500072-E-13 – Page 29