HD6417320 RENESAS [Renesas Technology Corp], HD6417320 Datasheet - Page 569

• Manufacturer Part Number: HD6417320
• Description: Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

(3)
1. Internal clock
2. Internal RTC clock
Set the bits TPSC2 to TPSC0 in TCR to select one of the four internal clocks created by
dividing a peripheral module clock (Pφ/4, Pφ/16, Pφ/64, Pφ/256). Figure 14.4 shows the
timing.
Set the bits TPSC2 to TPSC0 in TCR to select the RTC output clock as a clock for timer.
Figure 14.5 shows the timing.
input clock
TCNT Count Timing
Divided
TCNT
TCNT
clock
RTC output
TCNT input
Pφ
TCNT
clock
clock
Figure 14.4 Count Timing when Internal Clock is Operating
N + 1
Figure 14.5 Count Timing when RTC Clock is Operating
N+1
N
N
Rev. 3.00 Jan. 18, 2008 Page 507 of 1458
N-1
Section 14 Timer Unit (TMU)
N – 1
REJ09B0033-0300