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HD6432351 Datasheet(PDF) 577 Page - Renesas Technology Corp

Part # HD6432351
Description  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD6432351 Datasheet(HTML) 577 Page - Renesas Technology Corp

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Section 12 Watchdog Timer (WDT)
Rev. 3.00 Sep 15, 2006 page 543 of 988
REJ09B0330-0300
12.4
Interrupts
During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI).
The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR.
12.5
Usage Notes
12.5.1
Contention between Timer Counter (TCNT) Write and Increment
If a timer counter clock pulse is generated during the T2 state of a TCNT write cycle, the write
takes priority and the timer counter is not incremented. Figure 12.8 shows this operation.
Address
φ
Internal write signal
TCNT input clock
TCNT
NM
T1
T2
TCNT write cycle
Counter write data
Figure 12.8 Contention between TCNT Write and Increment



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