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SN8P2613 Datasheet(PDF) 74 Page - SONiX Technology Company |
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SN8P2613 Datasheet(HTML) 74 Page - SONiX Technology Company |
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74 / 102 page ![]() SN8P2610 Series 8-Bit Micro-Controller SONiX TECHNOLOGY CO., LTD Page 74 Version 1.3 8.2.3 T0C COUNTING REGISTER T0C is an 8-bit counter register for T0 interval time control. 0D9H Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 T0C T0C7 T0C6 T0C5 T0C4 T0C3 T0C2 T0C1 T0C0 Read/Write R/W R/W R/W R/W R/W R/W R/W R/W After reset 0 0 0 0 0 0 0 0 The equation of T0C initial value is as following. T0C initial value = 256 - (T0 interrupt interval time * input clock) Example: To set 10ms interval time for T0 interrupt. High clock is external 4MHz. Fcpu=Fosc/4. Select T0RATE=010 (Fcpu/64). T0C initial value = 256 - (T0 interrupt interval time * input clock) = 256 - (10ms * 4MHz / 4 / 64) = 256 - (10-2 * 4 * 106 / 4 / 64) = 100 = 64H The basic timer table interval time of T0. High speed mode (Fcpu = 4MHz / 4) Low speed mode (Fcpu = 32768Hz / 4) T0RATE T0CLOCK Max overflow interval One step = max/256 Max overflow interval One step = max/256 000 Fcpu/256 65.536 ms 256 us 8000 ms 31250 us 001 Fcpu/128 32.768 ms 128 us 4000 ms 15625 us 010 Fcpu/64 16.384 ms 64 us 2000 ms 7812.5 us 011 Fcpu/32 8.192 ms 32 us 1000 ms 3906.25 us 100 Fcpu/16 4.096 ms 16 us 500 ms 1953.125 us 101 Fcpu/8 2.048 ms 8 us 250 ms 976.563 us 110 Fcpu/4 1.024 ms 4 us 125 ms 488.281 us 111 Fcpu/2 0.512 ms 2 us 62.5 ms 244.141 us |
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