Freescale Semiconductor MPC8250, Family Reference Manual

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ATM Controller and AAL0, AAL1, and AAL5
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
30-50 Freescale Semiconductor
30.10.2.2.5 AAL1 CES Protocol-Specific RCT
Refer to Section 31.9.1.1, “AAL1 CES Protocol-Specific RCT.”
30.10.2.2.6 AAL2 Protocol-Specific RCT
Refer to Section 32.4.4.1, “AAL2 Protocol-Specific RCT.”
30.10.2.3 Transmit Connection Table (TCT)
Figure 30-30 shows the format of an TCT entry.
0x18 0–7 — 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.
9–15 — Reserved, should be cleared.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0x00 — GBL BO — DTB BIB AVCF — ATT CPUU VCON INTQ
0x02 — INF — ABRF AAL
0x04 Tx Data Buffer Pointer (TXDBPTR)
0x06
0x08 TBDCNT
0x0A TBD_OFFSET
0x0C Rate Remainder PCR Fraction
0x0E PCR
0x10 Protocol Specific
• For AAL5, Section 30.10.2.3.1, “AAL5 Protocol-Specific TCT .”
• For AAL2, Section 32.3.5.1, “AAL2 Protocol-Specific TCT .”
• For AAL1, Section 30.10.2.3.2, “AAL1 Protocol-Specific TCT .”
• For AAL1 CES, Section 31.9.2.1, “AAL1 CES Protocol-Specific TCT ”
• For AAL0, Section 30.10.2.3.3, “AAL0 Protocol-Specific TCT .”
0x12
0x14
0x16 APC Linked Channel (APCLC)
0x18 ATM Cell Header (VPI,VCI,PTI,CLP)
0x1a
0x1C — PMT TBD_BASE
0x1E TBD_BASE BNM STPT IMK PM
Figure 30-30. Transmit Connection Table (TCT) Entry
Table 30-20. AAL0-Specific RCT Field Descriptions (continued)
Offset Bits Name Description