Renesas R5S72622 User Manual

Page of 2152
 
 
 
 
 
 
Section 12   Compare Match Timer 
 
Page 658 of 2108 
 
R01UH0134EJ0400  Rev. 4.00 
 
 Sep 
24, 
2014 
 
SH7262 Group, SH7264 Group 
12.5
 
Usage Notes 
12.5.1
 
Conflict between Write and Compare-Match Processes of CMCNT 
When the compare match signal is generated in the T2 cycle while writing to CMCNT, clearing 
CMCNT has priority over writing to it. In this case, CMCNT is not written to. Figure 12.5 shows 
the timing to clear the CMCNT counter. 
CMCNT
T1
T2
CMCNT
H'0000
N
Peripheral clock 
(P
φ)
Address signal
Internal write signal
Counter clear signal
CMCSR write cycle
 
Figure 12.5   Conflict between Write and Compare Match Processes of CMCNT