R0K572011S000BE Renesas Electronics America, R0K572011S000BE Datasheet - Page 647

• Manufacturer Part Number: R0K572011S000BE
• Description: KIT STARTER FOR SH7201
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572011S000BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• For Use With/related Products: SH7201
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SH7201 Group
13.8
13.8.1
If the compare match is selected for counter clear, TCNT is cleared at the last state in the cycle in
which the values of TCNT and TCOR match. TCNT updates the counter value at this last state.
Therefore, the counter frequency is obtained by the following formula.
13.8.2
If a counter clear signal is generated during the T
priority and the write is not performed as shown in figure 13.12.
R01UH0026EJ0300 Rev. 3.00
Sep 24, 2010
f = Pφ/(N + 1)
f: Counter frequency
Pφ: Operating frequency
N: TCOR value
Usage Notes
Notes on Setting Cycle
Conflict between TCNT Write and Clear
P
Address
Internal write signal
Counter clear signal
TCNT
Figure 13.12 Conflict between TCNT Write and Clear
TCNT write cycle by CPU
T
1
N
TCNT address
2
state of a TCNT write cycle, the clear takes
T
2
H'00
Section 13 8-Bit Timers (TMR)
Page 619 of 1190