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[V850ES/SA3]
Port 7 is a 16-bit input port with all its bits fixed to the input mode.
Besides functioning as input port pins, P70 to P715 also operate as the analog input pins of the A/D converter
in the control mode. However, the mode of these pins cannot be changed between the input port mode and
analog input mode.
(a) Port mode
P70 to P715 function as input port pins.
(b) Control mode
P70 to P715 function as the ANI0 to ANI15 pins. The mode of these pins cannot be changed between the
input port mode and analog input mode.
(i) ANI0 to ANI15 (analog input 0 to 15) ... Input
These are the analog input pins of the A/D converter.
To prevent these pins malfunctioning due to noise, connect a capacitor between these pins and AV
Make sure that a voltage outside the range of AV
used as an input pin of the A/D converter. If there is a possibility that a noise greater than AV
lower than AV
V
.
)
(6) P80, P81 (Port 8) ... Input/Output
Port 8 is a 2-bit input port.
Besides functioning as input port pins, P80 and P81 also operate as the analog output pins of the D/A
converter in the control mode. The mode of these pins, however, cannot be changed between the control
mode and input port mode.
(a) Port mode
P80 and P81 function as input port pins.
(b) Control mode
(i) ANO0, ANO1 (analog output 0, 1) ... Output
These pins are the analog output pins of the D/A converter.
CHAPTER 2 PIN FUNCTIONS
will be superimposed on any of these pins, clamp the pins using a diode with a low
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Preliminary User's Manual U15905EJ1V0UD
to AV
is not applied to any pin that is being
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5()
.
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or
5()
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