HD6417727BP160CV Datasheet, PDF (510/1098 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/ SH7700 Series

Section 15 Timer (TMU)
Auto-Reload Count Operation: Figure 15.3 shows the TCNT auto-reload operation.
TCNT value
TCOR
TCOR value set to
TCNT during underflow
H'00000000
STR0 to STR2
UNF
Time
Figure 15.3 Auto-Reload Counter Operation
TCNT Count Timing:
• Internal Clock Operation
Select one of the four internal clocks (Pφ/4, Pφ/16, Pφ/64, Pφ/256), which are divided from the
peripheral clock Pφ, with the TPSC2 to TPSC0 bits in TCR. Figure 15.4 shows the timing.
Pφ
Divided
clock
TCNT
input clock
TCNT _{N + 1}
N
N−1
Figure 15.4 Count Timing when Internal Clock is Operating
Rev.6.00 Mar. 27, 2009 Page 452 of 1036
REJ09B0254-0600