r5f21368sdfp Renesas Electronics Corporation., r5f21368sdfp Datasheet - Page 342

• Manufacturer Part Number: r5f21368sdfp
• Description: Renesas Mcu R8c Family / R8c/3xt-a Series
• Manufacturer: Renesas Electronics Corporation.

Under development
R8C/36T-A Group
R01UH0240EJ0001 Rev.0.01
Apr 28, 2011
Figure 17.23
17.4.4
TRCIOB_XP (internal signal)
Corresponding output with
By setting the TRCOPR register (timer RC output waveform manipulation register), an output waveform from
the port can be manipulated by INT1 input for timer RC_0.
When the OPE bit in the TRCOPR register is 0, the output waveform manipulation function is disabled. Output
from timer RC ports TRCIOA, TRCIOB, TRCIOC, and TRCIOD is set by registers TRCIOR0, TRCIOR1, and
TRCOER. The output waveform manipulation function is disabled even if a request event for output waveform
manipulation is input.
When the OPE bit is 1, the output waveform manipulation is enabled. If an output waveform manipulation
event (INT1 = low for timer RC_0) is input, bits EA to ED in the TRCOER register are automatically set to 1.
By setting the timer RC port level using bits OPOL0 and OPOL1 in the TRCOPR register, low, high, or high
impedance is forcibly output. After the request event for output waveform manipulation is cancelled, output
waveform manipulation from the timer RC port is stopped and output is restarted by setting the RESTATS bit in
the TRCOPR register. The timing is automatically synchronized so that waveforms less than one cycle are not
output after the output is restarted.
Figures 17.23 to 17.26 show operation examples of output waveform mainpulation.
• When the timer RC pin is pulled down, the OPE bit in the TRCOPR register is 1 (output waveform
manipulation disabled
manipulation enabled), and bits OPOL1 and OPOL0 are 00b (when timer RC pin is pulled down, timer RC
output level is fixed to high impedance during output waveform manipulation period), and the RESTATS bit is
0 (output waveform manipulation is stopped by software and output is restarted)
Output control signal
manipulation event
TRCOER register
Output waveform
output waveform
Timer RC output
Output Waveform Manipulation
(internal signal)
TRCIOB output
TRCOAE_XN
Preliminary document
Specifications in this document are tentative and subject to change.
Operation Example of Output Waveform Manipulation (1)
EB bit in
Output waveform manipulation
event is input
period, timer RC output level is fixed to
During output waveform manipulation
high impedance, and fixed low when
timer RC pin is pulled down
Output waveform manipulation
event is cancelled
Waveforms less than one
cycle are not output
Output waveform manipulation
is stopped by software and
output is restarted
Page 311 of 725
17. Timer RC