Renesas R5S72621 User Manual

 

 

Section 11   Multi-Function Timer Pulse Unit 2 
 

Page 578 of 2108 

 

R01UH0134EJ0400  Rev. 4.00 

 

 Sep 

24, 

2014 

SH7262 Group, SH7264 Group

A/D converter start requests can be issued in channel 4 by making settings in the timer A/D 
converter start request control register (TADCR), timer A/D converter start request cycle set 
registers (TADCORA_4 and TADCORB_4), and timer A/D converter start request cycle set 
buffer registers (TADCOBRA_4 and TADCOBRB_4).  

The A/D converter start request delaying function compares TCNT_4 with TADCORA_4 or 
TADCORB_4, and when their values match, the function issues a respective A/D converter start 
request (TRG4AN or TRG4BN). 

A/D converter start requests (TRG4AN and TRG4BN) can be skipped in coordination with 
interrupt skipping by setting the ITA3AE, ITA4VE, ITB3AE, and ITB4VE bits in TADCR. 

  Example of Procedure for Specifying A/D Converter Start Request Delaying Function  

Figure 11.73 shows an example of procedure for specifying the A/D converter start request 
delaying function. 

 

Set A/D converter start request cycle

A/D converter start request 

delaying function

• Set the timing of transfer 
   from cycle set buffer register
• Set linkage with interrupt skipping

• Enable A/D converter start 
   request delaying function

A/D converter start request 

delaying function

[1]

[2]

[1] Set the cycle in the timer A/D converter start request cycle 

buffer register (TADCOBRA_4 or TADCOBRB_4) and timer 
A/D converter start request cycle register (TADCORA_4 or 
TADCORB_4). (The same initial value must be specified in 
the cycle buffer register and cycle register.)

[2] Use bits BF1 and BF2 in the timer A/D converter start 

request control register (TADCR) to specify the timing of 
transfer from the timer A/D converter start request cycle 
buffer register to A/D converter start request cycle register.

      • Specify whether to link with interrupt skipping through bits 

ITA3AE, ITA4VE, ITB3AE, and ITB4VE.

      • Use bits TU4AE, DT4AE, UT4BE, and DT4BE to enable 

A/D conversion start requests (TRG4AN or TRG4BN).

Notes: 1. Perform TADCR setting while TCNT_4 is stopped.
           2. Do not set BF1 to 1 when complementary PWM mode 

is not selected.

           3. Do not set ITA3AE, ITA4VE, ITB3AE, ITB4VE, 

DT4AE, or DT4BE to 1 when complementary PWM 
mode is not selected.