R0K572030S000BE Renesas Electronics America, R0K572030S000BE Datasheet - Page 701

• Manufacturer Part Number: R0K572030S000BE
• Description: KIT DEV FOR SH7203
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572030S000BE

• Contents: CPU Board, LCD Module, E10A-Lite Emulator, Cable, QuickStart Guide and CD-ROM
• Silicon Manufacturer: Renesas
• Kit Contents: Board
• Silicon Family Name: SH7203
• Silicon Core Number: R5S72030W200FP
• Tool / Board Applications: General Purpose MCU, MPU, DSP, DSC
• Mcu Supported Families: SH7203
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: SH7203
• Lead Free Status / Rohs Status: Compliant

12.3
12.3.1
When an internal clock is selected with the CKS[1:0] bits in CMCSR and the STR bit in CMSTR
is set to 1, CMCNT starts incrementing using the selected clock. When the values in CMCNT and
CMCOR match, CMCNT is cleared to H'0000 and the CMF flag in CMCSR is set to 1. When the
CMIE bit in CMCSR is set to 1 at this time, a compare match interrupt (CMI) is requested.
CMCNT then starts counting up again from H'0000.
Figure 12.2 shows the operation of the compare match counter.
12.3.2
One of four clocks (Pφ/8, Pφ/32, Pφ/128, and Pφ/512) obtained by dividing the peripheral clock
(Pφ) can be selected with the CKS1 and CKS0 bits in CMCSR. Figure 12.3 shows the timing.
Peripheral clock
Internal clock
Count clock
CMCNT
Operation
Interval Count Operation
CMCNT Count Timing
(Pφ)
CMCOR
H'0000
CMCNT value
Clock
N
Figure 12.2 Counter Operation
Figure 12.3 Count Timing
N
Counter cleared by compare
match with CMCOR
Rev. 3.00 Sep. 28, 2009 Page 669 of 1650
Section 12 Compare Match Timer (CMT)
Clock
N + 1
Time
REJ09B0313-0300
N + 1