NEC Network Controller uPD98502 - Manual (Page 7)

Preliminary User’s Manual S15543EJ1V0UM 7
CONTENTS
CHAPTER 1 INTRODUCTION ............................................................................................................... 23
1.1 Features ...................................................................................................................................... 23
1.2 Ordering Information ................................................................................................................. 23
1.3 System Configuration................................................................................................................ 24
1.4 Block Diagram (Summary) ........................................................................................................ 25
1.5 Block Diagram (Detail)............................................................................................................... 26
1.5.1 V
R
4120A RISC processor core ......................................................................................................26
1.5.2 IBUS ..............................................................................................................................................27
1.5.3 System controller ...........................................................................................................................28
1.5.4 ATM cell processor ........................................................................................................................29
1.5.5 Ethernet controller .........................................................................................................................30
1.5.6 USB controller ...............................................................................................................................31
1.5.7 PCI controller .................................................................................................................................32
1.6 Pin Configuration (Bottom View) ............................................................................................. 33
1.7 Pin Function ............................................................................................................................... 37
1.7.1 Power supply .................................................................................................................................37
1.7.2 System PLL power supply .............................................................................................................37
1.7.3 USB PLL power supply..................................................................................................................37
1.7.4 System control interface ................................................................................................................38
1.7.5 Memory interface ...........................................................................................................................39
1.7.6 PCI interface..................................................................................................................................41
1.7.7 ATM interface ................................................................................................................................43
1.7.8 Ethernet interface ..........................................................................................................................45
1.7.9 USB interface ................................................................................................................................46
1.7.10 UART interface ..............................................................................................................................47
1.7.11 Micro Wire interface.......................................................................................................................47
1.7.12 Parallel port interface.....................................................................................................................47
1.7.13 Boundary scan interface ................................................................................................................47
1.7.14 I.C. – open .....................................................................................................................................48
1.7.15 I.C.– pull down ...............................................................................................................................48
1.7.16 I.C. – pull down with resistor..........................................................................................................48
1.7.17 I.C. – pull up ..................................................................................................................................48
1.8 I/O Register Map......................................................................................................................... 49
1.9 Memory Map ............................................................................................................................... 53
1.10 Reset Configuration................................................................................................................... 54
1.11 Interrupts .................................................................................................................................... 55
1.12 Clock Control Unit ..................................................................................................................... 56
CHAPTER 2 V R 4120A ............................................................................................................................ 57
2.1 Overview for V R 4120A ............................................................................................................... 57
2.1.1 Internal block configuration............................................................................................................58
2.1.2 V R 4120A registers .........................................................................................................................59
2.1.3 V R 4120A instruction set overview ..................................................................................................60
2.1.4 Data formats and addressing.........................................................................................................61
2.1.5 Coprocessors (CP0) ......................................................................................................................63