User manual

Multi-Channel Controllers (MCCs)
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
28-34 Freescale Semiconductor
Table 28-16 describes group assignments.
NOTE
The TDM group channel assignments made in MCCF must be coherent with
the SI register programming and SI RAM programming; see Section 15.5,
“Serial Interface Registers,” and Section 15.4.3, “Programming SIx RAM
Entries.” The user must also program MCCF before enabling the TDM
channel in the SIGMR; see Section 15.5.1, “SI Global Mode Registers
(SIxGMR).”
28.7 MCC Commands
The user starts channels by writing to the TSTATE/RSTATE registers as described in Section 28.3.1.4,
“Internal Receiver State (RSTATE)—HDLC Mode,” and Section 28.3.1.1, “Internal Transmitter State
(TSTATE)—HDLC Mode.”
The following commands, used to stop and initialize channels, are issued to the MCC by writing to CPCR
as described in Section 14.4.1, “CP Command Register (CPCR).” All MCC channels must be initialized
using one of the following commands before being used in an active TDM. Not all commands are available
in all revisions of silicon and the user should refer to Section 14.4.1.1, “CP Commands,” for further details.
Table 28-16. Group Channel Assignments
Group Channels
Group1 in MCCF1
1
1
Not on the MPC8250 nor the MPC8255.
0–31
Group2 in MCCF1
1
32–63
Group3 in MCCF1
1
64–95
Group4 in MCCF1
1
96–127
Group1 in MCCF2 128–159
Group2 in MCCF2 160–191
Group3 in MCCF2 192–223
Group4 in MCCF2 224–255