HD6433044 Datasheet, PDF (351/867 Pages) Hitachi Semiconductor – Hitachi Single-Chip Microcomputer

TCNT value
GR
H'0000
STR bit
IMF
Counter cleared by general
register compare match
Time
Figure 10-16 Periodic Counter Operation
• TCNT count timing
— Internal clock source
Bits TPSC2 to TPSC0 in TCR select the system clock (ø) or one of three internal clock
sources obtained by prescaling the system clock (ø/2, ø/4, ø/8).
Figure 10-17 shows the timing.
ø
Internal
clock
TCNT input
TCNT
N–1
N
Figure 10-17 Count Timing for Internal Clock Sources
N+1
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