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H83068F Datasheet(PDF) 10 Page - Renesas Technology Corp |
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H83068F Datasheet(HTML) 10 Page - Renesas Technology Corp |
10 / 935 page Rev. 3.00 Sep 14, 2005 page x of xxii 6.2.9 Refresh Timer Control/Status Register (RTMCSR) ............................................ 135 6.2.10 Refresh Timer Counter (RTCNT)........................................................................ 136 6.2.11 Refresh Time Constant Register (RTCOR) ......................................................... 137 6.2.12 Address Control Register (ADRCR) ................................................................... 138 6.3 Operation .......................................................................................................................... 139 6.3.1 Area Division....................................................................................................... 139 6.3.2 Bus Specifications ............................................................................................... 141 6.3.3 Memory Interfaces............................................................................................... 142 6.3.4 Chip Select Signals .............................................................................................. 143 6.3.5 Address Output Method....................................................................................... 144 6.4 Basic Bus Interface ........................................................................................................... 146 6.4.1 Overview.............................................................................................................. 146 6.4.2 Data Size and Data Alignment............................................................................. 146 6.4.3 Valid Strobes ...................................................................................................... 147 6.4.4 Memory Areas ..................................................................................................... 148 6.4.5 Basic Bus Control Signal Timing ........................................................................ 150 6.4.6 Wait Control ........................................................................................................ 157 6.5 DRAM Interface ............................................................................................................... 159 6.5.1 Overview.............................................................................................................. 159 6.5.2 DRAM Space and RAS Output Pin Settings ....................................................... 159 6.5.3 Address Multiplexing .......................................................................................... 160 6.5.4 Data Bus .............................................................................................................. 161 6.5.5 Pins Used for DRAM Interface ........................................................................... 162 6.5.6 Basic Timing........................................................................................................ 162 6.5.7 Precharge State Control ....................................................................................... 164 6.5.8 Wait Control ........................................................................................................ 165 6.5.9 Byte Access Control and CAS Output Pin .......................................................... 166 6.5.10 Burst Operation.................................................................................................... 168 6.5.11 Refresh Control.................................................................................................... 174 6.5.12 Examples of Use .................................................................................................. 178 6.5.13 Usage Notes ......................................................................................................... 183 6.6 Interval Timer ................................................................................................................... 186 6.6.1 Operation ............................................................................................................. 186 6.7 Interrupt Sources............................................................................................................... 192 6.8 Burst ROM Interface ........................................................................................................ 192 6.8.1 Overview.............................................................................................................. 192 6.8.2 Basic Timing........................................................................................................ 192 6.8.3 Wait Control ........................................................................................................ 193 6.9 Idle Cycle.......................................................................................................................... 194 6.9.1 Operation ............................................................................................................. 194 |
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