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H8/3028F 数据表(PDF) 841 Page - Renesas Technology Corp |
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H8/3028F 数据表(HTML) 841 Page - Renesas Technology Corp |
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841 / 923 page ![]() Rev. 2.00, 09/03, page 811 of 890 TCSR2—Timer Control/Status Register 2 H'FFF92 8-bit timer channel 2 TCSR3—Timer Control/Status Register 3 H'FFF93 8-bit timer channel 3 Bit Initial value Read/Write 0 R/(W) * 7 CMFB 0 R/(W) * 6 CMFA 0 R/(W) * 5 OVF 0 R/W 4 ICE 0 R/W 3 OIS3 0 R/W 2 OIS2 0 R/W 1 OS1 0 R/W 0 OS0 Timer overflow flag 0 [Clearing condition] Read OVF when OVF = 1, then write 0 in OVF. Bit Initial value Read/Write 0 R/(W) * 7 CMFB 0 R/(W) * 6 CMFA 0 R/(W) * 5 OVF 1 — 4 — 0 R/W 3 OIS3 0 R/W 2 OIS2 0 R/W 1 OS1 0 R/W 0 OS0 TCSR3 TCSR2 1 [Setting condition] TCNT overflows from H'FF to H'00. Compare match/input capture flag A 0 [Clearing condition] Read CMFA when CMFA = 1, then write 0 in CMFA. 1 [Setting condition] TCNT = TCORA Compare match/input capture flag B 0 [Clearing condition] Read CMFB when CMFB = 1, then write 0 in CMFB. 1 [Setting conditions] • TCNT = TCORB • The TCNT value is transferred to TCORB by an input capture signal when TCORB functions as an input capture register. Note: * Only 0 can be written to bits 7 to 5, to clear these flags. Input capture enable (TCSR3 only) 0 1 TCORB is a compare match register TCORB is an input capture register Output select A1 and A0 0 Description Bit 1 OS1 Bit 0 OS0 1 0 1 No change at compare match A 0 output at compare match A 1 output at compare match A Output toggles at compare match A 0 1 Description ICE in TCSR3 Bit 3 OIS3 Bit 2 OIS2 Output/input capture edge select B3 and B2 0 0 1 0 1 0 1 0 1 0 1 0 No change at compare match B 0 output at compare match B 1 output at compare match B Output toggles at compare match B TCORB input capture on rising edge TCORB input capture on falling edge TCORB input capture on both rising and falling edges 1 |
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