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H83069RF Datasheet(PDF) 215 Page - Renesas Technology Corp |
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H83069RF Datasheet(HTML) 215 Page - Renesas Technology Corp |
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215 / 1003 page  Rev. 5.0, 09/04, page 193 of 978 6.11 Register and Pin Input Timing 6.11.1 Register Write Timing ABWCR, ASTCR, WCRH, and WCRL Write Timing: Data written to ABWCR, ASTCR, WCRH, and WCRL takes effect starting from the next bus cycle. Figure 6.49 shows the timing when an instruction fetched from area 0 changes area 0 from three-state access to two-state access. φ T1 T2 T3 T1 T2 T3 T1 T2 Address bus 3-state access to area 0 2-state access to area 0 ASTCR address Figure 6.49 ASTCR Write Timing DDR and CSCR Write Timing: Data written to DDR or CSCR for the port corresponding to the CSn pin to switch between CSn output and generic input takes effect starting from the T 3 state of the DDR write cycle. Figure 6.50 shows the timing when the CS 1 pin is changed from generic input to CS 1 output. φ T1 T2 T3 +51 Address bus High-impedance P8DDR address Figure 6.50 DDR Write Timing |
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