
5
μ
PD703000, 703001
TABLE OF CONTENTS
1. LIST OF PIN FUNCTIONS ..................................................................................................................
1.1 Port Pins .......................................................................................................................................
1.2 Pins Other Than Port Pins ..........................................................................................................
1.3 I/O Circuits of Pins and Recommended Connections of Unused Pins .................................. 11
7
7
9
2. FUNCTION BLOCKS .......................................................................................................................... 13
2.1 Internal Units................................................................................................................................ 13
2.1.1 CPU .................................................................................................................................................... 13
2.1.2 Bus control unit (BCU) ........................................................................................................................ 13
2.1.3 ROM ................................................................................................................................................... 13
2.1.4 RAM.................................................................................................................................................... 13
2.1.5 Port ..................................................................................................................................................... 13
2.1.6 Interrupt controller............................................................................................................................... 13
2.1.7 Clock generator .................................................................................................................................. 13
2.1.8 Realtime pulse unit (RPU) .................................................................................................................. 13
2.1.9 Serial interface.................................................................................................................................... 14
3. CPU FUNCTION .................................................................................................................................. 15
3.1 Features........................................................................................................................................ 15
4. BUS CONTROL FUNCTION ............................................................................................................... 16
4.1 Features........................................................................................................................................ 16
5. INTERRUPT/EXCEPTION HANDLING............................................................................................... 17
5.1 Features........................................................................................................................................ 17
5.2 Configuration ............................................................................................................................... 17
6. CLOCK GENERATOR ........................................................................................................................ 19
6.1 Features........................................................................................................................................ 19
6.2 Configuration ............................................................................................................................... 19
7. TIMER/COUNTER FUNCTION (Real Time Pulse Unit)..................................................................... 20
7.1 Features........................................................................................................................................ 20
7.2 Configuration ............................................................................................................................... 21
8. SERIAL INTERFACE FUNCTION (SIO) ............................................................................................. 22
8.1 Features........................................................................................................................................ 22
8.2 Asynchronous Serial Interface (UART) ..................................................................................... 22
8.2.1 Features.............................................................................................................................................. 22
8.2.2 Configuration ...................................................................................................................................... 23
8.3 Clocked Serial Interface (CSI)..................................................................................................... 24
8.3.1 Features.............................................................................................................................................. 24
8.3.2 Configuration ...................................................................................................................................... 24
8.4 Baud Rate Generator (BRG) ....................................................................................................... 25
8.4.1 Features.............................................................................................................................................. 25
8.4.2 Configuration ...................................................................................................................................... 25
9. PORT FUNCTION................................................................................................................................ 26
9.1 Features........................................................................................................................................ 26
9.2 Configuration ............................................................................................................................... 26
10. RESET FUNCTION............................................................................................................................ 38
10.1 Features...................................................................................................................................... 38