UPD784907 Datasheet, PDF (6/98 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

µPD784907, 784908
CONTENTS
1. DIFFERENCES BETWEEN µPD784908 SUBSERIES PRODUCTS ....................................... 8
2. MAJOR DIFFERENCES BETWEEN µPD784908 AND µPD78098 SUBSERIES .................. 9
3. PIN CONFIGURATION (TOP VIEW) ......................................................................................... 10
4. SYSTEM CONFIGURATION EXAMPLE (AUTOMOTIVE CAR AUDIO (TUNER DECK)) ..... 12
5. BLOCK DIAGRAM ..................................................................................................................... 13
6. PIN FUNCTION ........................................................................................................................... 14
6.1 Port Pins ............................................................................................................................................ 14
6.2 Non-Port Pins ................................................................................................................................... 16
6.3 Pin I/O Circuits and Recommended Connections of Unused Pins .......................................... 18
7. CPU ARCHITECTURE ............................................................................................................... 22
7.1 Memory Space .................................................................................................................................. 22
7.2 CPU Registers .................................................................................................................................. 25
7.2.1 General-purpose registers ................................................................................................ 25
7.2.2 Control registers ................................................................................................................ 26
7.2.3 Special function registers (SFRs) .................................................................................... 27
8. PERIPHERAL HARDWARE FUNCTIONS ................................................................................ 33
8.1 Ports ................................................................................................................................................... 33
8.2 Clock Generator ............................................................................................................................... 35
8.3 Real-Time Output Port ..................................................................................................................... 38
8.4 Timers/Counters ............................................................................................................................... 39
8.5 Watch Timer ...................................................................................................................................... 41
8.6 PWM Output (PWM0, PWM1) .......................................................................................................... 42
8.7 A/D Converter ................................................................................................................................... 43
8.8 Serial Interface ................................................................................................................................. 44
8.8.1 Asynchronous serial interface/3-wire serial I/O (UART/IOE) ....................................... 45
8.8.2 Clocked serial interface (CSI) ........................................................................................... 47
8.9 Clock Output Function .................................................................................................................... 48
8.10 Edge Detection Function ................................................................................................................ 49
8.11 Watchdog Timer ............................................................................................................................... 49
8.12 Simplified IEBus Controller ............................................................................................................ 50
9. INTERRUPT FUNCTION ............................................................................................................ 53
9.1 Interrupt Source ............................................................................................................................... 53
9.2 Vectored Interrupt ............................................................................................................................ 55
9.3 Context Switching ............................................................................................................................ 56
9.4 Macro Service ................................................................................................................................... 56
9.5 Examples of Macro Service Applications .................................................................................... 57
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Data Sheet U11680EJ2V0DS00