DF2345TE20 Renesas Electronics America, DF2345TE20 Datasheet - Page 411

• Manufacturer Part Number: DF2345TE20
• Description: MCU 5V 128K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2300r

Specifications of DF2345TE20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 71
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F2345TE20; HD64F2345TE20

10.3.3
TCNT is cleared at the rising edge of an external reset input, depending on the settings of the
CCLR1 and CCLR0 bits in TCR. The clear pulse width must be at least 1.5 states. Figure 10.7
shows the timing of this operation.
10.3.4
The OVF in TCSR is set to 1 when the timer count overflows (changes from H'FF to H'00). Figure
10.8 shows the timing of this operation.
External reset
input pin
Clear signal
TCNT
Timing of External RESET on TCNT
Timing of Overflow Flag (OVF) Setting
TCNT
Overflow signal
OVF
Figure 10.7 Timing of External Reset
Figure 10.8 Timing of OVF Setting
N–1
H'FF
Rev. 4.00 Feb 15, 2006 page 385 of 900
N
H'00
Section 10 8-Bit Timers
H'00
REJ09B0291-0400