NEC Network Controller uPD98502 User Manual
Page 239
CHAPTER 4 ATM CELL PROCESSOR
Preliminary User’s Manual S15543EJ1V0UM
239
Offset Address
Register Name
R/W
Access
Description
1001_F0C8H
A_TSR
R/W
W
Time Stamp Register
1001_F0CCH:
1001_F1FCH
N/A
-
-
Reserved for future use
1001_F200H:
1001_F2FCH
N/A
-
-
Can not access from V
R
4120A RISC Core.
This area is used for an internal function.
1001_F300H
A_IBBAR
R/W
W
IBUS Base Address Register
1001_F304H
A_INBAR
R/W
W
Instruction Base Address Register
1001_F308H:
1001_F31CH
N/A
-
-
Reserved for future use
1001_F320H
A_UMCMD
R/W
W
UTOPIA Management Interface Command Register
1001_F324H:
1001_F3FCH
N/A
-
-
Reserved for future use
1001_F400H:
1001_F4FCH
N/A
-
-
Can not access from V
R
4120A RISC Core.
This area is used for an internal function.
1001_F500H:
1001_FFFCH
N/A
-
-
Reserved for future use
Remarks 1. In the “R/W” field,
“W” means “writeable”,
“R” means “readable”,
“RC” means “read-cleared”,
“- “ means “not accessible”.
2. All internal registers are 32-bit word-aligned registers.
3. The burst access to the internal register is prohibited.
If such burst access has been occurred, IRERR bit in NSR is set and NMI will assert to CPU.
4. Read access to the reserved area will set the CBERR bit in the NSR register and the dummy read
response data with the data-error bit set on SysCMD [0] is returned.
5. Write access to the reserved area will set the CBERR bit in the NSR register, and the write data is lost.
6. In the “Access” filed,
“W” means that word access is valid,
“H” means that half word access is valid,
“B” means that byte access is valid.
7. Write access to the read-only register cause no error, but the write data is lost.
8. The CPU can access all internal registers, but IBUS master device cannot access them.
4.4.1.2 Indirect addressing register
Address
Note
Register Name
R/W
Access
Description
FFF410H
RXLCTR
R/W
W
Rx Lookup Table control Register
FFF600H
RxTBL000
W
H
Rx Lookup Table Entry00 Halfword0
FFF602H
RxTBL001
W
H
Rx Lookup Table Entry00 Halfword1
FFF6FCH
RxTBL3F0
W
H
Rx Lookup Table Entry3F Halfword0
FFF6FEH
RxTBL3F1
W
H
Rx Lookup Table Entry3F Halfword1
FFF700H
RxTBC00
R/W
W
Rx Lookup Table Control Entry00
FFF77EH
RXTBC3F
R/W
W
Rx Lookup Table Control Entry3F
Note These addresses are used in Indirect Address Command.