upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 200

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

7.4.2 Operation as external event counter
The edge setting can be selected as either the rising or falling edge.
request signal (INTTMn) is generated.
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The external event counter counts the number of external clock pulses that are input to TIn.
Each time a valid edge specified by timer clock select register n, n1 (TCLn, TCLn1) is input, TMn is incremented.
If the total of TMn and the value of 8-bit compare register n (CRn0) match, TMn is cleared to 0 and an interrupt
INTTMn is generated each time the TMn value matches the CRn0 value.
Remark
Remark
TMn count value
n = 2 to 5
n = 2 to 5
Figure 7-31. Timing of External Event Counter Operation (When Rising Edge Is Set)
INTTMn
CRn0
TIn
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CHAPTER 7 TIMER/COUNTER FUNCTION
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User’s Manual U12768EJ4V1UD
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N
N
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1
N
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