HD6437020 Datasheet, PDF (283/507 Pages) Hitachi Semiconductor – SuperH™ RISC engine

TCNT3
N–1
N
N+1
N
N–1
GRA3
IMFA
Buffer transfer
signal (BR to GR)
GR
TCNT4
OVF
Buffer transfer
signal (BR to GR)
GR
N
Set to 1
Flag not set
Buffer transfer performed
Figure 10.36 Overshoot Timing
Buffer transfer
not performed
Underflow
Overflow
H' 0001 H' 0000 H' FFFF H' 0000
Flag not set
Set to 1
Buffer transfer performed
Buffer transfer
not performed
Figure 10.37 Undershoot Timing
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