HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 260

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

8. 16-Bit Timer
• Sample setup procedure for input capture
• Examples of input capture
Rev.4.00 Aug. 20, 2007 Page 216 of 638
REJ09B0395-0400
Figure 8.21 shows a sample procedure for setting up input capture.
Figure 8.22 illustrates input capture when the falling edge of TIOCB and both edges of TIOCA
are selected as capture edges. 16TCNT is cleared by input capture into GRB.
Select input-capture input
H'0180
H'0160
H'0005
H'0000
TIOCB
TIOCA
GRA
GRB
16TCNT value
Input selection
Start counter
Input capture
Figure 8.21 Setup Procedure for Input Capture (Example)
Figure 8.22 Input Capture (Example)
H'0005
1
2
1.
2.
Set TIOR to select the input capture function of a
general register and the rising edge, falling edge,
or both edges of the input capture signal. Clear the
DDR bit to 0 before making these TIOR settings.
Set the STR bit to 1 in TSTR to start the timer
counter.
H'0160
H'0180