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Freescale Semiconductor MPC8260 User Manual

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ATM AAL2

MPC8260 PowerQUICC II Family Reference Manual, Rev. 2

32-36

Freescale Semiconductor

0x62

APCP_BASE

Hword

APC parameters table base address. User-defined.

0x64

FBT_BASE

Hword

Free buffer pool parameters table base. User-defined.

0x66

INTT_BASE

Hword

Interrupt queue parameters table base. User-defined.

0x68

Reserved. Should be cleared during initialization.

0x6A

UNI_STATT_BASE

Hword

UNI statistics table base. User-defined.

0x6C

BD_BASE_EXT

Word

BD table base address extension. BD_BASE_EXT[0-7] hold the 8 most
significant bits of the RX/TxBD table base address.
BD_BASE_EXT[8-31] should be zero. User-defined.

0x70

VPT_BASE /
EXT_CAM_BASE

Word

Base address of the address compression VP table/external CAM.
User-defined.

0x74

VCT_BASE

Word

Base address of the address compression VC table. User-defined.

0x78

VPT1_BASE /
EXT_CAM1_BASE

Word

Base address of the address compression VP1 table/EXT CAM1.
User-defined.

0x7C

VCT1_BASE

Word

Base address of the address compression VC1 table. User-defined.

0x80

VP_MASK

Hword

VP mask for address compression lookup. User-defined.

0x82

VCI_Filtering

Hword

VCI filtering enable bits. When cells with VCI = 3, 4, 6, 7-15 are received
and the associated VCI_Filtering bit = 1 the cell is sent to the raw cell
queue. VCI=3 is associated with VCI_Filtering[3], VCI=15 is associated
with VCI_Filtering[15]. VCI_Filtering[0–2, 5] should be zero. See

Section 30.10.1.2, “VCI Filtering (VCIF)

.”

0x84

GMODE

Hword

Global mode. User-defined. See

Section 30.10.1.3, “Global Mode Entry

(GMODE)

.”

0x86

COMM_INFO

Hword

The information field associated with the last host command.
User-defined. See

Section 30.14, “ATM Transmit Command

.

0x88

Hword

0x8A

Hword

0x8C

Word

Reserved. Should be cleared during initialization.

0x90

CRC32_PRES

Word

Preset for CRC32. Initialize to 0xFFFFFFFF.

0x94

CRC32_MASK

Word

Constant mask for CRC32. Initialize to 0xDEBB20E3.

0x98

AAL1_SNPT_BASE

Hword

AAL1 SN protection look up table base address. (AAL1 only.) The
32-byte table resides in dual-port RAM and must be initialized by the user
(See

Section 30.10.6, “AAL1 Sequence Number (SN) Protection Table

”).

0x9A

Hword

Reserved. Should be cleared during initialization.

0x9C

SRTS_BASE

Word

External SRTS logic base address. (AAL1 only.) Should be 16-byte
aligned.

0xA0

IDLE/UNASSIGN_BASE

Hword

Idle/unassign cell base address. Points to dual-port RAM area contains

idle/unassign cell template (little-endian format). Should be 64-byte
aligned. User-defined. The ATM header should be 0x0000_0000 or
0x0100_0000 (CLP=1).

0xA2

IDLE/UNASSIGN_SIZE

Hword

Idle/Unassign cell size. 52 in regular mode. 53–64 in UDC mode.

Table 32-13. AAL2 Parameter RAM (continued)

Offset

Name

Width

Description