HD6473032F Datasheet, PDF (251/572 Pages) Hitachi Semiconductor – Hitachi Microcomputer

GRA3
GR
H'0000
BR
GR
Not allowed
Figure 8-39 Changing a General Register Setting by Buffer Transfer (Example 1)
— Buffer transfer at transition from up-counting to down-counting
If the general register value is in the range from GRA3 – T + 1 to GRA3, do not transfer a
buffer register value outside this range. Conversely, if the general register value is outside
this range, do not transfer a value within this range. See figure 8-40.
GRA3 + 1
GRA3
GRA3 – T + 1
GRA3 – T
Illegal changes
TCNT3
TCNT4
Figure 8-40 Changing a General Register Setting by Buffer Transfer (Caution 1)
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