r5f71374an80fpv Renesas Electronics Corporation., r5f71374an80fpv Datasheet - Page 746

• Manufacturer Part Number: r5f71374an80fpv
• Description: 32-bit Risc Microcomputer Superh?? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Section 18 Compare Match Timer (CMT)
18.5
18.5.1
The CMT operation can be disabled or enabled using the standby control register. The initial
setting is for CMT operation to be halted. Access to a register is enabled by clearing module
standby mode. For details, refer to section 24, Power-Down Modes.
18.5.2
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 18.5 shows
the timing to clear the CMCNT counter.
Rev. 1.00 Sep. 21, 2007 Page 720 of 1124
REJ09B0402-0100
Figure 18.5 Conflict between Write and Compare-Match Processes of CMCNT
Usage Notes
Module Standby Mode Setting
Conflict between Write and Compare-Match Processes of CMCNT
Peripheral operating
Counter clear
Internal write
clock (Pφ)
Address
CMCNT
CMCSR write cycle
N
T1
CMCNT
T2
H'0000