HD6432621 Hitachi, HD6432621 Datasheet - Page 371

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

Input Capture Function: The TCNT value can be transferred to TGR on detection of the TIOC
pin input edge.
Rising edge, falling edge, or both edges can be selected as the detected edge. For channels 0, 1, 3,
and 4, it is also possible to specify another channel’s counter input clock or compare match signal
as the input capture source.
Note: When another channel’s counter input clock is used as the input capture input for channels
Example of input capture operation setting procedure
Figure 10-12 shows an example of the input capture operation setting procedure.
<Input capture operation>
Select input capture input
0 and 3, ø/1 should not be selected as the counter input clock used for input capture input.
Input capture will not be generated if ø/1 is selected.
Figure 10-12 Example of Input Capture Operation Setting Procedure
Input selection
Start count
[1]
[2]
[1] Designate TGR as an input capture register by
[2] Set the CST bit in TSTR to 1 to start the count
means of TIOR, and select rising edge, falling
edge, or both edges as the input capture source
and input signal edge.
operation.
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