beautypg.com

8 i/o register map – NEC Network Controller uPD98502 User Manual

Page 49

background image

CHAPTER 1 INTRODUCTION

Preliminary User’s Manual S15543EJ1V0UM

49

1.8 I/O Register Map

Core

Offset

Register

Length

(Byte)

Name

Access by

V

R

4120A

Description

ATM

F000H

4

A_GMR

R/W

General Mode Register

ATM

F004H

4

A_GSR

R

General Status Register

ATM

F008H

4

A_IMR

R/W

Interrupt Mask Register

ATM

F00CH

4

A_RQU

R

Receive Queue Underrunning

ATM

F010H

4

A_RQA

R

Receive Queue Alert

ATM

F014H

-

N/A

-

Reserved for future use

ATM

F018H

4

A_VER

R

Version Number

ATM

F01CH

-

N/A

-

Reserved for future use

ATM

F020H

4

A_CMR

R/W

Command Register

ATM

F024H

-

N/A

-

Reserved for future use

ATM

F028H

4

A_CER

R/W

Command Extension Register

ATM

F02CH-F04CH

-

N/A

-

Reserved for future use

ATM

F050H

4

A_MSA0

R/W

Mailbox0 Start Address

ATM

F054H

4

A_MSA1

R/W

Mailbox1 Start Address

ATM

F058H

4

A_MSA2

R/W

Mailbox2 Start Address

ATM

F05CH

4

A_MSA3

R/W

Mailbox3 Start Address

ATM

F060H

4

A_MBA0

R/W

Mailbox0 Bottom Address

ATM

F064H

4

A_MBA1

R/W

Mailbox1 Bottom Address

ATM

F068H

4

A_MBA2

R/W

Mailbox2 Bottom Address

ATM

F06CH

4

A_MBA3

R/W

Mailbox3 Bottom Address

ATM

F070H

4

A_MTA0

R/W

Mailbox0 Tail Address

ATM

F074H

4

A_MTA1

R/W

Mailbox1 Tail Address

ATM

F078H

4

A_MTA2

R/W

Mailbox2 Tail Address

ATM

F07CH

4

A_MTA3

R/W

Mailbox3 Tail Address

ATM

F080H

4

A_MWA0

R/W

Mailbox0 Write Address

ATM

F084H

4

A_MWA1

R/W

Mailbox1 Write Address

ATM

F088H

4

A_MWA2

R/W

Mailbox2 Write Address

ATM

F08CH

4

A_MWA3

R/W

Mailbox3 Write Address

ATM

F090H

4

A_RCC

R

Valid Receiving Cell Counter

ATM

F094H

4

A_TCC

R

Valid Transmitting Cell Counter

ATM

F098H

4

A_RUEC

R

Receive Unprovisioned VPI/VCI Error Cell Counter

ATM

F09CH

4

A_RIDC

R

Receiving Internal Discarded Cell Counter

ATM

F0A0H-F0AFH

-

N/A

-

Reserved for future use

ATM

F0B0H-F0B3H

-

N/A

-

Reserved for future use

ATM

F0B4H-F0BCH

-

N/A

-

Reserved for future use

ATM

F0C0H

4

A_T1R

R/W

T1 Timer Register

ATM

F0C4H

-

N/A

-

Reserved for future use

ATM

F0C8H

4

A_TSR

R/W

Time Stamp Register

ATM

F200H-F2FFH

-

N/A

-

Can not access from V

R

4120A RISC Core.

ATM

F300H

4

A_IBBAR

R/W

IBUS Base Address Register

ATM

F304H

4

A_INBAR

R/W

Instruction Base Address Register

ATM

F308H- F31FH

-

N/A

-

Reserved for future use

ATM

F320H

4

A_UMCMD

R/W

UTOPIA Management Interface Command Register

ATM

F324H- F3FFH

-

N/A

-

Reserved for future use

ATM

F400H-F4FFH

-

N/A

-

Can not access from V

R

4120A RISC Core.

ATM

F500H-FFFFH

-

N/A

-

Reserved for future use

PCI

000H

4

P_PLBA

R/W

PCI Lower Base Address

PCI

008H

4

P_IBBA

R/W

Internal bus Base Address

PCI

000H

4

P_PLBA

R/W

PCI Lower Base Address

PCI

008H

4

P_IBBA

R/W

Internal bus Base Address

PCI

00CH

4

N/A

-

Reserved for future use

PCI

010H

4

P_VERR

R

Version Register

PCI

014H

4

P_PCAR

R/W

PCI Configuration Address Register

PCI

018H

4

P_PCDR

R/W

PCI Configuration Data Register

PCI

01CH

4

P_IGSR

R

Internal bus General Status Register

PCI

020H

4

P_IIMR

R/W

Internal bus Interrupt Mask Register

PCI

024H

4

P_PGSR

R/W

PCI General Status Register

PCI

028H

4

P_PIMR

R/W

PCI Interrupt Mask Register

PCI

02CH

4

N/A

-

Reserved for future use

PCI

030H

4

P_HMCR

R/W

Host Mode Control Register

PCI

034H-03CH

4

N/A

-

Reserved for future use

PCI

040H

4

P_PWCD

R/W

Power Consumption Data Register

PCI

044H

4

P_PWDD

R/W

Power Dissipation Data Register