Motorola PowerQUICC II MPC8280 Series Reference Manual page 1148

Receive and Transmit Connection Tables (RCT, TCT)
memory. The only relationship between transmit and receive connection tables of the same
channel is the CRT (CAS routing table); see Section 32.4.7.1, "CAS Routing Table."
Each connection table entry resides in 32 bytes. The pointers to these connection tables
reside in the parameter RAM.
32.9.1 Receive Connection Table (RCT)
Figure 32-21 shows the format of an RCT entry.
0 1 2
Offset + 0x00 — GBL
Offset + 0x02
Offset + 0x04
Offset + 0x06
Offset + 0x08
Offset + 0x0A
Offset + 0x0C
Offset + 0x0E Protocol Specific. Refer to Section 32.9.1.1, "AAL1 CES Protocol-Specific RCT."
Offset + 0x10
Offset + 0x12
Offset + 0x14
Offset + 0x16
Offset + 0x18
Offset + 0x1A
Offset + 0x1C —
Offset + 0x1E
Figure 32-21. Receive Connection Table (RCT) Entry
For an active channel, the CP uses a burst cycle to fetch the
32-byte RCT and writes back only the first 24 bytes.
32-28
Freescale Semiconductor, Inc.
3 4 5 6 7
BO — DTB BIB
—
RX Data Buffer Pointer (RXDBPTR)
PMT
RBD_BASE
NOTE
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8 9 10 11
— SEGF ENDF
CASM
Cell Time Stamp
RBD_Offset
MRBLR
RBD_BASE
12 13 14 15
— SYNC INTQ
ABRF AAL
CCASM CESM — PM
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