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SH7041A датащи(PDF) 619 Page - Renesas Technology Corp |
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SH7041A датащи(HTML) 619 Page - Renesas Technology Corp |
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619 / 923 page ![]() 581 Table 16.4 A/D Conversion Time (Single Mode) CKS=0 CKS=1 Notation Min Typ Max Min Typ Max A/D conversion start delay time t D 10 —17 6 —9 Input sampling time t SPL — 64— — 32— A/D conversion time t CCNV 259 — 266 131 — 134 Note: Numbers in the table are in states (t cyc ). 16.4.4 External Trigger Input Timing It is possible to start A/D conversion from an external trigger input. External trigger input is input from the ADTRG pin or MTU when the TRGE bit of the A/D control register (ADCR) is set to 1. A/D conversion is started when the ADST bit of the A/D control/status register (ADCSR) is set to 1 by the ADTRG input pin last transition edge or MTU trigger. Other operations, regardless of whether in the single or scan mode, are the same as when setting the ADST bit to 1 with the software. Figure 16.6 shows an example of external trigger input timing. ADTRG External trigger signal A/D conversion CK ADST Figure 16.6 External Trigger Input Timing |
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