Battery Place Holder; Microcontroller Rl78/I1D - Renesas RL78/I1D User Manual

DETECT-IT RL78/I1D detector boards kit
Button Status
SW1 Un-pressed
Pressed
5.1.6

Battery place holder

Each board is equipped with a CR123 battery holder. There is a reverse polarity protection (P-channel MOSFET).
Only one battery CR123 is provided into the kit for the 4 boards.
Be careful when placing the battery to pay attention to the polarity.
Caution: Battery should never be installed when using E1 power supply or external power supply via CN02/CN01.
5.1.7

Microcontroller RL78/I1D

The Renesas 48-pin RL78/I1D MCU is the main element of the demonstrator board.
The reference used in this demonstrator is the biggest component of the family RL78/I1D. It is a 48 pin QFP package
with 32kB Flash and 3kB RAM embedded. The part number is: R5F117GCGFB.
The 48-pin RL78/I1D MCU has 4 channels of operational amplifier, 2 channels of comparators, and a total of 41 I/O
lines (including digital and analog interfaces).
4 headers of 12-pin each that bring out most of the MCU I/O pins. Pins for access to device port: all pins of the
RL78/I1D MCU are connected to:
UM-YDETECT-IT-RL78 V1.30
Function
INTP0 is high – no operation
INTP0 goes low – interrupt function is executed which defeats alarm
(software depending)
Kit User Manual
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