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H8SX/1663M Datasheet(PDF) 856 Page - Renesas Technology Corp |
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H8SX/1663M Datasheet(HTML) 856 Page - Renesas Technology Corp |
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856 / 1504 page  Section 16 8-Bit Timers (TMR) Rev. 2.00 Sep. 24, 2008 Page 824 of 1468 REJ09B0412-0200 Table 16.3 Clock Input to TCNT and Count Condition (Unit 1) TCR TCCR Channel Bit 2 CKS2 Bit 1 CKS1 Bit 0 CKS0 Bit 1 ICKS1 Bit 0 ICKS0 Description 0 0 0 Clock input prohibited 0 0 Uses internal clock. Counts at rising edge of P φ/8. 0 1 Uses internal clock. Counts at rising edge of P φ/2. 1 0 Uses internal clock. Counts at falling edge of P φ/8. 0 0 1 1 1 Uses internal clock. Counts at falling edge of P φ/2. 0 0 Uses internal clock. Counts at rising edge of P φ/64. 0 1 Uses internal clock. Counts at rising edge of P φ/32. 1 0 Uses internal clock. Counts at falling edge of P φ/64. 0 1 0 1 1 Uses internal clock. Counts at falling edge of P φ/32. 0 0 Uses internal clock. Counts at rising edge of P φ/8192. 0 1 Uses internal clock. Counts at rising edge of P φ/1024. 1 0 Uses internal clock. Counts at falling edge of P φ/8192. 0 1 1 1 1 Uses internal clock. Counts at falling edge of P φ/1024. TMR_2 1 0 0 Counts at TCNT_3 overflow signal* 1. 0 0 0 Clock input prohibited 0 0 Uses internal clock. Counts at rising edge of P φ/8. 0 1 Uses internal clock. Counts at rising edge of P φ/2. 1 0 Uses internal clock. Counts at falling edge of P φ/8. 0 0 1 1 1 Uses internal clock. Counts at falling edge of P φ/2. 0 0 Uses internal clock. Counts at rising edge of P φ/64. 0 1 Uses internal clock. Counts at rising edge of P φ/32. 1 0 Uses internal clock. Counts at falling edge of P φ/64. 0 1 0 1 1 Uses internal clock. Counts at falling edge of P φ/32. 0 0 Uses internal clock. Counts at rising edge of P φ/8192. 0 1 Uses internal clock. Counts at rising edge of P φ/1024. 1 0 Uses internal clock. Counts at falling edge of P φ/8192. 0 1 1 1 1 Uses internal clock. Counts at falling edge of P φ/1024. TMR_3 1 0 0 Counts at TCNT_2 compare match A* 1. 1 0 1 Uses external clock. Counts at rising edge* 2. 1 1 0 Uses external clock. Counts at falling edge* 2. All 1 1 1 Uses external clock. Counts at both rising and falling edges* 2. Notes: 1. If the clock input of channel 2 is the TCNT_3 overflow signal and that of channel 3 is the TCNT_2 compare match signal, no incrementing clock is generated. Do not use this setting. 2. To use the external clock, the DDR and ICR bits in the corresponding pin should be set to 0 and 1, respectively. For details, see section 13, I/O Ports. |
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