r5s77631ay266bgv Renesas Electronics Corporation., r5s77631ay266bgv Datasheet - Page 822

• Manufacturer Part Number: r5s77631ay266bgv
• Description: Renesas 32-bit Risc Microcomputer Superhtm Risc Engine Family Sh-4a Series
• Manufacturer: Renesas Electronics Corporation.

Section 21 Compare Match Timer (CMT)
21.3.2
In this module, the size of the counter is selectable as either 16 or 32 bits. This is selected by the
CMS bit in CMCSR.
When the 16-bit size is selected, use a 32-bit value which has H'0000 as its upper half to set
CMCOR.
To detect an overflow interrupt, the value must be set to H'0000FFFF.
21.3.3
In this module, the clock for the counter can be selected from among the following:
•
The clock for the counter is selected by bits CKS2 to CKS0 in CMCSR. CMCNT is incremented
at the rising edge of the selected clock.
Rev. 1.00 Oct. 01, 2007 Page 756 of 1956
REJ09B0256-0100
 Peripheral clock (Pck0): 1/8, 1/32, or 1/128
H'00000000
For channels 0 to 4:
CMCOR
Value in
CMCNT
Counter Size
Timing for Counting by CMCNT
Figure 21.3 Counter Operation (Free-Running Operation)
CMF=1
OVF=1 (When an overflow is detected)
Time