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M37478M2TXXXSP Datasheet(PDF) 4 Page - Renesas Technology Corp |
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M37478M2TXXXSP Datasheet(HTML) 4 Page - Renesas Technology Corp |
4 / 361 page 7470/7471/7477/7478 GROUP USER’S MANUAL Table of contents i Table of contents CHAPTER 1. HARDWARE 1.1 Description .............................................................................................................................. 1-2 1.2 Group expansion ................................................................................................................... 1-3 1.3 Performance overview .......................................................................................................... 1-6 1.4 Pin configuration ................................................................................................................. 1-10 1.5 Pin description ..................................................................................................................... 1-14 1.6 Functional block diagram .................................................................................................. 1-17 1.7 Central processing unit (CPU) ......................................................................................... 1-23 1.7.1 Accumulator (A) ........................................................................................................... 1-24 1.7.2 Index register X (X), Index register Y (Y) .............................................................. 1-24 1.7.3 Stack pointer (S) ......................................................................................................... 1-24 1.7.4 Program counter (PC)................................................................................................. 1-26 1.7.5 Processor status register (PS) ..................................................................................1-26 1.8 Access area .......................................................................................................................... 1-28 1.8.1 Zero page (Addresses 000016 to 00FF16) .............................................................. 1-29 1.8.2 Special page (Addresses FF0016 to FFFF16) ........................................................ 1-29 1.9 Memory allocation ............................................................................................................... 1-30 1.10 I/O pins .................................................................................................................................. 1-35 1.10.1 I/O port ....................................................................................................................... 1-35 1.10.2 Port block diagram .................................................................................................... 1-40 1.10.3 Notes on use ............................................................................................................. 1-45 1.11 Interrupts ............................................................................................................................... 1-48 1.11.1 Description of interrupt source ............................................................................... 1-48 1.11.2 Operation description ................................................................................................ 1-52 1.11.3 Interrupt control ......................................................................................................... 1-55 1.11.4 Notes on use ............................................................................................................. 1-57 1.11.5 Related registers ....................................................................................................... 1-59 1.12 Timers ..................................................................................................................................... 1-62 1.12.1 Operation description ................................................................................................ 1-64 1.12.2 Description of modes ................................................................................................ 1-65 1.12.3 Input latch function ................................................................................................... 1-79 1.12.4 Updating of contents of Timer and Timer latch ................................................... 1-80 1.12.5 Notes on use ............................................................................................................. 1-82 1.12.6 Related registers ....................................................................................................... 1-83 1.13 Serial I/O ................................................................................................................................ 1-89 1.13A 7470/7471 group part .............................................................................................. 1-90 1.13A.1 Operation description ............................................................................................. 1-90 1.13A.2 Byte specification mode ......................................................................................... 1-98 1.13A.3 Pins ......................................................................................................................... 1-101 |
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