DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 576

• Manufacturer Part Number: DF61654N50FTV
• Description: IC H8SX/1654 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61654N50FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 75
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 12 8-Bit Timers (TMR)
12.8
12.8.1
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.
12.8.2
If a counter clear signal is generated during the T
priority and the write is not performed as shown in figure 12.15.
Rev.1.00 Sep. 08, 2005 Page 526 of 966
REJ09B0219-0100
f =
f:
N: TCOR value
Usage Notes
Notes on Setting Cycle
Conflict between TCNT Write and Counter Clear
: Operating frequency
Counter frequency
/ (N + 1 )
P
Address
Internal write signal
Counter clear signal
TCNT
Figure 12.15 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