Fujitsu MB90895 Series Hardware Manual page 376

CHAPTER 13 8/10-bit A/D converter
Table 13.3-2 Function of Each Bit of A/D Control Status Register (High) (ADCS: H) (2/2)
bit15
358
bit name
BUSY: This bit forcibly terminates the 8-/10-bit A/D converter.When read,
A/D conversion-on flag this bit indicates whether the 8-/10-bit A/D converter is operating or
bit stopped.
When set to "0": Forcibly terminates 8-/10-bit A/D converter
When the bit is set to "1": No effect.
Read: "1" is read when the 8-/10-bit A/D converter is operating
and "0" is read when the 8-/10-bit A/D converter is stopped.
Note:
Function
Do not perform forcible termination (BUSY = 0) and software
start (STRT = 1) of the 8-/10-bit A/D converter simultaneously.