R5F72115D160FPV datasheet(672/1228 Pages) RENESAS

Part #	R5F72115D160FPV

Description	32-Bit RISC Microcomputer SuperHTM RISC engine Family

PDF	1228 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 13 Compare Match Timer (CMT)

Rev. 2.00 May. 08, 2008 Page 648 of 1200

REJ09B0344-0200

13.5.3

Conflict between Byte-Write and Count-Up Processes of CMCNT

Even when the count-up occurs in the T2 cycle while writing to CMCNT in bytes, the writing has

priority over the count-up. In this case, the count-up is not performed. The byte data on the other

side, which is not written to, is also not counted and the previous contents are retained.

Figure 13.7 shows the timing when the count-up occurs in the T2 cycle while writing to

CMCNTH in bytes.

CMCNTH

CMCNTL

Peripheral clock

φ)

Address signal

Internal write signal

CMCNT count-up

enable signal

CMCSR write cycle

Figure 13.7 Conflict between Byte-Write and Count-Up Processes of CMCNT

13.5.4

Compare Match Between CMCNT and CMCOR

Do not set a same value to CMCNT and CMCOR while the count operation of CMCNT is

stopped.

R5F72115D160FPV Datasheet(PDF) 672 Page - Renesas Technology Corp