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SN8A1702AX データシート(PDF) 55 Page - SONiX Technology Company |
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SN8A1702AX データシート(HTML) 55 Page - SONiX Technology Company |
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55 / 112 page ![]() Preliminary SN8P1702A/SN8P1703A 8-bit micro-controller build-in 12-bit ADC SONiX TECHNOLOGY CO., LTD Page 55 Revision 0.5 TIMER COUNTER 0 (TC0) OVERVIEW The timer counter 0 (TC0) is used to generate an interrupt request when a specified time interval has elapsed. TC0 has a auto re-loadable counter that consists of two parts: an 8-bit reload register (TC0R) into which you write the counter reference value, and an 8-bit counter register (TC0C) whose value is automatically incremented by counter logic. Figure 8-1. TC0 Block Diagram The main purposes of the TC0 timer counter is as following. 8-bit programmable timer: Generates interrupts at specific time intervals based on the selected clock frequency. Arbitrary frequency output (Buzzer output): Outputs selectable clock frequencies to the BZ0 pin (P5.4). PWM function: PWM output can be generated by the PWM1OUT bit and output to PWM0OUT pin (P5.4). TC0R reload data buffer Fcpu TC0enb TC0C 8-bit binary counter TC0 Time out load Aload0 Auto. reload P5.4 ÷2 TC0out Internal P5.4 I/O circuit CPUM0 S R Compare PWM0OUT PWM Buzzer ÷2(8-TC0Rate) INT0 (schmitter trigger) TC0CKS TC0R reload data buffer Fcpu TC0enb TC0C 8-bit binary counter TC0 Time out load Aload0 Auto. reload P5.4 ÷2 TC0out Internal P5.4 I/O circuit CPUM0 S R Compare PWM0OUT PWM Buzzer ÷2(8-TC0Rate) INT0 (schmitter trigger) TC0CKS |
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