Motorola MPC8260 User Manual

29-51

MOTOROLA

Figure 29-30 shows the format of an TCT entry. 

Table 29-21 describes general TCT Þelds.

0x18

0Ð7

Ñ

Reserved, should be cleared.

8

RXBM

Receive buffer interrupt mask
0 The receive buffer event of this channel is masked. (The RXB event is not sent to the 

interrupt queue when receive buffers are closed.)

1 The receive buffer event of this channel is enabled.

9Ð15

Ñ

Reserved, should be cleared. 

0

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

Offset + 0x00

Ñ

GBL

BO

Ñ

DTB BIB AVCF

Ñ

ATT

CPUU VCON

INTQ

Offset + 0x02

Ñ

INF

Ñ

ABRF

AAL

Offset + 0x04

Tx Data Buffer Pointer (TXDBPTR)

Offset + 0x06

Offset + 0x08

TBDCNT

Offset + 0x0A

TBD_OFFSET

Offset + 0x0C

Rate Remainder 

PCR Fraction 

Offset + 0x0E

PCR

Offset + 0x10

Protocol SpeciÞc

Offset + 0x12

Offset + 0x14

Offset + 0x16

APC Linked Channel (APCLC)

Offset + 0x18

ATM Cell Header (VPI,VCI,PTI,CLP)

Offset + 0x1a

Offset + 0x1C

Ñ

PMT

TBD_BASE

Offset + 0x1E

TBD_BASE

BNM

STPT

IMK

PM