Overview Of Initialization Procedures And Mode Transitions In Case Of Error During Operation, Etc - Renesas RZ/A Series User Manual

RZ/A1L Group, RZ/A1LU Group, RZ/A1LC Group
10.8.4 Overview of Initialization Procedures and Mode Transitions in Case of Error
during Operation, etc.
• When making a transition to a mode (Normal, PWM1, PWM2, PCM) in which the pin output level is selected by
the timer I/O control register (TIOR) setting, initialize the pins by means of a TIOR setting.
• In PWM mode 1, since a waveform is not output to the TIOC
pins. If initialization is required, carry it out in normal mode, then switch to PWM mode 1.
• In PWM mode 2, since a waveform is not output to the cycle register pin, setting TIOR will not initialize the pins. If
initialization is required, carry it out in normal mode, then switch to PWM mode 2.
• In normal mode or PWM mode 2, if TGRC and TGRD operate as buffer registers, setting TIOR will not initialize
the buffer register pins. If initialization is required, clear buffer mode, carry out initialization, then set buffer mode
again.
• In PWM mode 1, if either TGRC or TGRD operates as a buffer register, setting TIOR will not initialize the TGRC
pin. To initialize the TGRC pin, clear buffer mode, carry out initialization, then set buffer mode again.
• When making a transition to a mode (CPWM, RPWM) in which the pin output level is selected by the timer output
control register (TOCR) setting, switch to normal mode and perform initialization with TIOR, then restore TIOR to
its initial value, and temporarily disable channel 3 and 4 output with the timer output master enable register
(TOER). Then operate the unit in accordance with the mode setting procedure (TOCR setting, TMDR setting,
TOER setting).
Note: Channel number is substituted for
Pin initialization procedures are described below for the numbered combinations in Table 10.57. The active level is
assumed to be low.
R01UH0437EJ0600 Rev.6.00
Jan 29, 2021
B (TIOC
*
indicated in this article.
*
10. Multi-Function Timer Pulse Unit 2
D) pin, setting TIOR will not initialize the
*
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