FUJITSU F2MCTM-16LX - Manual (Page 189)

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CHAPTER 10 I/O PORTS
Note:
SIL0, SIL1 are write-only, and “1” is always read from these bits. Therefore, instructions that perform a
read-modify-write (RMW) operation such as the INC/DEC instruction, cannot be used at DDRA.
●
DDRA: Bits 0 to 2, Bits 5 to 7 (unused bits)
"1" is always read from these bits. Writing to these bits is no effect.
Table 10.2-1 SIN0/SIN1 Input Level Setting
DDRA ILSR
SIN0(P82) / SIN1(P85)
input level
SIL0/SIL1 bit IL8 bit
0 0 Automotive level
0 1 CMOS level
1 x CMOS level