CHAPTER 1 INTRODUCTION
Preliminary User’s Manual S15543EJ1V0UM 49
1.8 I/O Register Map
Core Offset Register
Length
(Byte)
Name Access by
VR4120A
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 Comm and 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 VR4120A RISC Core.
ATM F300H 4 A_IBBAR R/W IBUS Base Address Regis ter
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 VR4120A 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 I nternal 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 Regist er
PCI 034H-03CH 4 N/A - Reserv ed 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