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HD6417618 Datasheet(PDF) 443 Page - Renesas Technology Corp |
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HD6417618 Datasheet(HTML) 443 Page - Renesas Technology Corp |
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443 / 646 page  Section 15 Host Interface (HIF) Rev. 6.00 Jun. 12, 2007 Page 411 of 610 REJ09B0131-0600 15.7 Interface (Details) 15.7.1 HIFIDX Write/HIFGSR Read Writing of HIFIDX and reading of HIFGSR are shown in figure 15.4. HIFCS HIFRS HIFRD HIFWR HIFD15 to HIFD00 WT_D RD_D HIFIDX write cycle HIFGSR read cycle Figure 15.4 HIFIDX Write and HIFGSR Read 15.7.2 Reading/Writing of HIF Registers other than HIFIDX and HIFGSR As shown in figure 15.5, in reading and writing of HIF internal registers other than HIFIDX and HIFGSR, first HIFRS is held high and HIFIDX is written to in order to select the register to be accessed and the byte location. Then HIFRS is held low, and reading or writing of the register selected by HIFIDX is performed. HIFCS HIFRS HIFRD HIFWR HIFD15 to HIFD00 WT_D HIFIDX RD_D Index write Register write Register read Register selection Figure 15.5 HIF Register Settings |
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