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H8SX1663 Datasheet(PDF) 689 Page - Renesas Technology Corp |
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H8SX1663 Datasheet(HTML) 689 Page - Renesas Technology Corp |
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689 / 1158 page  Section 13 32K Timer (TM32K) Rev.1.00 Jun. 07, 2006 Page 637 of 1102 REJ09B0294-0100 Section 13 32K Timer (TM32K) The 32K timer (TM32K) is an 8-bit timer that generates a 32K timer interrupt each time the counter overflows. Figure 13.1 shows a block diagram of the TM32K. 13.1 Features • Selectable from four counter input clocks produced by frequency division of the 32.768 kHz clock • A 32K timer interrupt (32KOVI) generated by a counter overflow • Four overflow cycles of 250 ms, 500 ms, 1 s, and 2 s settable • Counter operational except in hardware standby mode or the reset state Clock select Clock [Legend] TCR32K: Timer control register TCNT32K: Timer counter Internal clock SUBCK/32 32KOVI (IRQ15) (Interrupt request signal) SUBCK/64 SUBCK/128 SUBCK/256 TCR32K TCNT32K Module bus Bus interface Counter TK32K Figure 13.1 Block Diagram of TM32K |
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