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Chapter 2
Pin Functions
Preliminary User’s Manual U14913EE1V0UM00
(13) ANI00 to ANI11 (Analog input) … Input
These are analog input pins to the A/D converter.
(14) COM0 to COM1 (Common signal)... Output
These are the common signal output of LCD-controller/driver
(15) CLKSEL (Clock generator operating mode select) … Input
This is the input pin that specifies the operation mode of the clock generator. Fix it so that the input
level does not change during operation.
(16) VCMPIN (Voltage Comparator Input)... Input
This pin is the input pin for the voltage comparator.
(17) VCMPOUT (Voltage Comparator Output)... Output
This pin is the output pin of the voltage comparator.
(18) MODE0 to MODE3 (Mode) … Input
These are the input pins that specify the operation mode. Operation modes are broadly divided into
normal operation modes and flash memory programming mode. The operation mode is determined
by sampling the status of each of pins MODE0 to MODE3 on a reset.
Fix these so that the input level does not change during operation.
(19) RESET (Reset) … Input
RESET input is asynchronous input. When a signal having a certain low level width is input in asyn-
chronous with the operation clock, a system reset that takes precedence over all operations occurs.
Besides a normal initialize or start, this signal is also used to release a standby mode (HALT, IDLE,
Watch, software STOP).
(20) NMI (NON-Maskable Interrupt Request)... input
This is the non-maskable interrupt request input pin.
(21) X1, X2 (Crystal)
These pins connect a resonator for system clock generation.
They also can input external clocks. For external clock input, connect to the X1 pin and leave the X2
pin open.
(22) CV
DD
(Power supply for clock generator)
This is the positive power supply pin for the clock generator.
Summary of Contents for V850E/CA1 ATOMIC
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