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UPD703101AGJ-33 Datasheet(PDF) 8 Page - NEC |
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UPD703101AGJ-33 Datasheet(HTML) 8 Page - NEC |
8 / 132 page Preliminary Data Sheet U14168EJ2V0DS00 8 µµµµPD703100A-33, 703100A-40, 703101A-33, 703102A-33 CONTENTS 1. DIFFERENCES AMONG PRODUCTS...........................................................................................10 2. PIN FUNCTIONS ............................................................................................................................11 2.1 Port Pins...............................................................................................................................11 2.2 Non-Port Pins.......................................................................................................................14 2.3 Pin I/O Circuits and Recommended Connection of Unused Pins ..................................18 3. FUNCTION BLOCKS .....................................................................................................................21 3.1 Internal Units........................................................................................................................21 3.1.1 CPU ................................................................................................................................ 21 3.1.2 Bus control unit (BCU) ..................................................................................................... 21 3.1.3 ROM .............................................................................................................................. 21 3.1.4 RAM ............................................................................................................................... 22 3.1.5 Ports .............................................................................................................................. 22 3.1.6 Interrupt controller (INTC) ................................................................................................. 22 3.1.7 Clock generator (CG) ....................................................................................................... 22 3.1.8 Real-time pulse unit (RPU) ............................................................................................... 22 3.1.9 Serial interface (SIO) ....................................................................................................... 22 3.1.10 A/D converter (ADC) ...................................................................................................... 22 4. CPU FUNCTIONS...........................................................................................................................23 5. BUS CONTROL FUNCTIONS........................................................................................................23 6. MEMORY ACCESS CONTROL FUNCTIONS ...............................................................................24 6.1 SRAM Connection ...............................................................................................................24 6.2 Page ROM Controller (ROMC)............................................................................................25 6.2.1 Features ......................................................................................................................... 25 6.2.2 Page ROM connection ..................................................................................................... 25 6.3 DRAM Controller..................................................................................................................27 6.3.1 Features ......................................................................................................................... 27 6.3.2 DRAM connections .......................................................................................................... 27 7. DMA FUNCTIONS (DMA CONTROLLER) ....................................................................................29 8. INTERRUPT/EXCEPTION PROCESSING FUNCTIONS...............................................................31 8.1 Features................................................................................................................................31 9. CLOCK GENERATION FUNCTIONS ............................................................................................36 10. TIMER/COUNTER FUNCTIONS (REAL-TIME PULSE UNIT).....................................................37 11. SERIAL INTERFACE FUNCTION................................................................................................ 40 11.1 Asynchronous Serial Interfaces 0, 1 (UART0, UART1) ..................................................40 11.2 Clocked Serial Interfaces 0 to 3 (CSI0 to CSI3) ..............................................................41 11.3 Dedicated Baud Rate Generators 0 to 2 (BRG0 to BRG2).............................................43 |
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