Operation Timing; Twcnt Count Timing; Twcnt Clear Timing By Setting Start Bit; Figure 14.3 Twcnt Count Timing - Renesas H8S/2437 Hardware Manual

14.5

Operation Timing

14.5.1

TWCNT Count Timing

Figure 14.3 shows the TWCNT count timing.
Internal clock
TWCNT
input clock
TWCNT
N-1
14.5.2

TWCNT Clear Timing by Setting START Bit

Setting the START bit in TWCR2 to 1 starts duty measurement and then clears TWCNT. Figure
14.4 shows the TWCNT clear timing.
START bit
Clear signal
TWCNT

Figure 14.4 TWCNT Clear Timing by Setting START Bit

Figure 14.3 TWCNT Count Timing

N
N
Rev. 1.00, 09/03, page 407 of 704
N-1
N'00