8 i/o register map – NEC Network Controller uPD98502 User Manual
Page 49

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