HD64F7051SFJ20V Renesas Electronics America, HD64F7051SFJ20V Datasheet - Page 387

• Manufacturer Part Number: HD64F7051SFJ20V
• Description: MCU 5V 256K J-TEMP PB-FREE QFP-1
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7050r

Specifications of HD64F7051SFJ20V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: EBI/EMI, SCI
• Peripherals: DMA, WDT
• Number Of I /o: 102
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 168-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

12.3.4
In the interval timer mode, when the TCNT overflows, the OVF flag of the TCSR is set to 1 and
an interval timer interrupt is simultaneously requested (figure 12.6).
12.3.5
When the TCNT overflows in the watchdog timer mode, the WOVF bit of the RSTCSR is set to 1
and a WDTOVF signal is output. When the RSTE bit is set to 1, TCNT overflow enables an
internal reset signal to be generated for the entire chip (figure 12.7).
Overflow signal
(internal signal)
Overflow signal
(internal signal)
Timing of Setting the Overflow Flag (OVF)
Timing of Setting the Watchdog Timer Overflow Flag (WOVF)
WOVF
TCNT
CK
TCNT
OVF
CK
Figure 12.7 Timing of Setting the WOVF Bit
Figure 12.6 Timing of Setting the OVF
H'FF
H'FF
H'00
H'00
Rev. 5.00 Jan 06, 2006 page 365 of 818
Section 12 Watchdog Timer (WDT)
REJ09B0273-0500