SH7280 Datasheet, PDF (763/1726 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine family

Section 14 Compare Match Timer (CMT)
14.5.2 Conflict between Word-Write and Count-Up Processes of CMCNT
Even when the count-up occurs in the T2 cycle while writing to CMCNT in words, the writing has
priority over the count-up. In this case, the count-up is not performed. Figure 14.6 shows the
timing to write to CMCNT in words.
Peripheral clock
(Pφ)
Address signal
Internal write signal
CMCSR write cycle
T1
T2
CMCNT
CMCNT count-up
enable signal
CMCNT
N
M
Figure 14.6 Conflict between Word-Write and Count-Up Processes of CMCNT
Rev. 1.00 Jun. 26, 2008 Page 733 of 1692
REJ09B0393-0100