HD6417750RF240DV Datasheet, PDF (404/1132 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7750 Series

Section 12 Timer Unit (TMU)
SH7750, SH7750S, SH7750R Group
Auto-Reload Count Operation: Figure 12.3 shows the TCNT auto-reload operation.
TCNT value
TCOR
TCOR value set in TCNT
on underflow
H'00000000
STR0–STR2
Time
UNF
Figure 12.3 TCNT Auto-Reload Operation
TCNT Count Timing:
• Operating on internal clock
Any of five count clocks (Pck/4, Pck/16, Pck/64, Pck/256, or Pck/1024) scaled from the
peripheral module clock can be selected as the count clock by means of the TPSC2–TPSC0
bits in TCR.
Figure 12.4 shows the timing in this case.
Pck
Internal clock
TCNT
N+1
N
N–1
Figure 12.4 Count Timing when Operating on Internal Clock
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R01UH0456EJ0702 Rev. 7.02
Sep 24, 2013