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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M306V2EEFS датащи(PDF) 161 Page - Renesas Technology Corp |
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M306V2EEFS датащи(HTML) 161 Page - Renesas Technology Corp |
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161 / 271 page  Rev.1.40 Oct 06, 2004 page 161 of 269 M306V2ME-XXXFP, M306V2EEFP 2.12.5 Repeat Sweep Mode 1 In repeat sweep mode 1, all pins are used for A-D conversion with emphasis on the pin or pins selected using the A-D sweep pin select bit. Table 2.12.6 shows the specifications of repeat sweep mode 1. Figures 2.12.14 and 2.12.15 show the A-D control register in repeat sweep mode 1. Table 2.12.6 Repeat sweep mode 1 specifications Item Specification Function All pins perform repeat sweep A-D conversion, with emphasis on the pin or pins selected by the A-D sweep pin select bit Example : AN0 selected AN0 AN1 AN0 AN2 AN0 AN3, etc Start condition Writing “1” to A-D conversion start flag Stop condition Writing “0” to A-D conversion start flag Interrupt request generation timing None generated Input pin AN0 (1 pin), AN0 and AN1 (2 pins) Reading of result of A-D converter Read A-D register corresponding to selected pin (at any time) Figure 2.12.14 A-D control register 0 in repeat sweep mode 1 A-D control register 0 (Note) Symbol Address When reset ADCON0 03D616 00000???2 b7 b6 b5 b4 b3 b2 b1 b0 Analog input pin select bit CH0 Bit symbol Bit name Function CH1 CH2 A-D operation mode select bit 0 1 1 : Repeat sweep mode 1 MD0 MD1 Reserved bit ADST A-D conversion start flag 0 : A-D conversion disabled 1 : A-D conversion started Frequency select bit 0 0 : fAD/4 is selected 1 : fAD/2 is selected CKS0 W R 1 1 Invalid in repeat sweep mode 1 b4 b3 Note: If the A-D control register is rewritten during A-D conversion, the conversion result is indeterminate. Must always be set to “0” 0 |
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