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UPD703216YA2 Datasheet(PDF) 10 Page - NEC |
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UPD703216YA2 Datasheet(HTML) 10 Page - NEC |
10 / 884 page User’s Manual U16889EJ1V0UD 10 4.3.8 Port 8 ........................................................................................................................................... 118 4.3.9 Port 9 ........................................................................................................................................... 121 4.3.10 Port CD ........................................................................................................................................ 129 4.3.11 Port CM........................................................................................................................................ 130 4.3.12 Port CS ........................................................................................................................................ 132 4.3.13 Port CT ........................................................................................................................................ 134 4.3.14 Port DH ........................................................................................................................................ 136 4.3.15 Port DL......................................................................................................................................... 138 4.4 Block Diagrams ........................................................................................................................ 141 4.5 Port Register Setting When Alternate Function Is Used...................................................... 170 4.6 Cautions .................................................................................................................................... 178 4.6.1 Cautions on bit manipulation instruction for port n register (Pn) .................................................. 178 4.6.2 Hysteresis characteristics ............................................................................................................ 179 CHAPTER 5 BUS CONTROL FUNCTION .......................................................................................... 180 5.1 Features .................................................................................................................................... 180 5.2 Bus Control Pins ...................................................................................................................... 181 5.2.1 Pin status when internal ROM, internal RAM, or on-chip peripheral I/O is accessed................... 182 5.2.2 Pin status in each operation mode............................................................................................... 182 5.3 Memory Block Function .......................................................................................................... 183 5.3.1 Chip select control function.......................................................................................................... 184 5.4 External Bus Interface Mode Control Function..................................................................... 184 5.5 Bus Access ............................................................................................................................... 185 5.5.1 Number of clocks for access........................................................................................................ 185 5.5.2 Bus size setting function .............................................................................................................. 185 5.5.3 Access by bus size ...................................................................................................................... 186 5.6 Wait Function............................................................................................................................ 193 5.6.1 Programmable wait function ........................................................................................................ 193 5.6.2 External wait function................................................................................................................... 194 5.6.3 Relationship between programmable wait and external wait ....................................................... 195 5.6.4 Programmable address wait function........................................................................................... 196 5.7 Idle State Insertion Function................................................................................................... 197 5.8 Bus Hold Function ................................................................................................................... 198 5.8.1 Functional outline......................................................................................................................... 198 5.8.2 Bus hold procedure...................................................................................................................... 199 5.8.3 Operation in power save mode .................................................................................................... 199 5.9 Bus Priority ............................................................................................................................... 200 5.10 Bus Timing................................................................................................................................ 201 5.11 Cautions .................................................................................................................................... 207 CHAPTER 6 CLOCK GENERATION FUNCTION............................................................................... 208 6.1 Overview ................................................................................................................................... 208 6.2 Configuration............................................................................................................................ 209 6.3 Registers ................................................................................................................................... 211 6.4 Operation .................................................................................................................................. 215 6.4.1 Operation of each clock ............................................................................................................... 215 6.4.2 Clock output function ................................................................................................................... 215 |
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