r5f21346mnfp Renesas Electronics Corporation., r5f21346mnfp Datasheet - Page 256

• Manufacturer Part Number: r5f21346mnfp
• Description: Single-chip Mcus Incorporates The R8c Cpu Core
• Manufacturer: Renesas Electronics Corporation.

R8C/34M Group
R01UH0131EJ0100 Rev.1.00
Jun 21, 2011
Figure 17.3
17.6.2
• “H” level width of measured pulse is measured. (TEDGSEL = 1)
• TRAPRE = FFh
The above applies under the following conditions.
(TRAIO pin input)
Measured pulse
TRACR register
TRACR register
TRACR register
IR bit in TRAIC
TSTART bit in
TEDGF bit in
TUNDF bit in
Operating Example
register
FFFFh
0000h
Operating Example of Pulse Width Measurement Mode
n
n = high level: the contents of TRA register, low level: the contents of TRAPRE register
Set to 1 by program
Count start
Set to 0 when interrupt request is acknowledged, or set by program
Count stop
Count start
Set to 0 by program
Underflow
Set to 0 by program
Count stop
Count start
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Period
17. Timer RA