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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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H8SX/1663R 数据表(PDF) 874 Page - Renesas Technology Corp |
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H8SX/1663R 数据表(HTML) 874 Page - Renesas Technology Corp |
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874 / 1504 page  Section 16 8-Bit Timers (TMR) Rev. 2.00 Sep. 24, 2008 Page 842 of 1468 REJ09B0412-0200 Table 16.9 Switching of Internal Clock and TCNT Operation No. Timing to Change CKS1 and CKS0 Bits TCNT Clock Operation 1 Switching from low to low* 1 Clock before switchover Clock after switchover TCNT input clock TCNT CKS bits changed N N + 1 2 Switching from low to high* 2 Clock before switchover Clock after switchover TCNT input clock TCNT CKS bits changed N N + 1 N + 2 3 Switching from high to low* 3 Clock before switchover Clock after switchover TCNT input clock TCNT CKS bits changed N N + 1 N + 2 *4 4 Switching from high to high Clock before switchover Clock after switchover TCNT input clock TCNT CKS bits changed N N + 1 N + 2 Notes: 1. Includes switching from low to stop, and from stop to low. 2. Includes switching from stop to high. 3. Includes switching from high to stop. 4. Generated because the change of the signal levels is considered as a falling edge; TCNT is incremented. |
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