µPD703100A-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
8
Preliminary Data Sheet U14168EJ2V0DS00
NEC [ NEC ]
