If I understood your question correctly then please find my response as below.
One cell can be the part of maximum 8 MBSFN Areas and each MBSFN Area has its own configuration for MCCH.
Reference from 36.331, content of SIB-13 :
**SystemInformationBlockType13-r9 ::= SEQUENCE {
mbsfn-AreaInfoList-r9 MBSFN-AreaInfoList-r9,
notificationConfig-r9 MBMS-NotificationConfig-r9,
lateNonCriticalExtension OCTET STRING OPTIONAL, -- Need OP
...
}**
MBSFN-AreaInfoList-r9 ::= SEQUENCE (SIZE(1..maxMBSFN-Area)) OF MBSFN-AreaInfo-r9
MBSFN-AreaInfo-r9 ::= SEQUENCE {
mbsfn-AreaId-r9 INTEGER (0..255),
non-MBSFNregionLength ENUMERATED {s1, s2},
notificationIndicator-r9 INTEGER (0..7),
mcch-Config-r9 SEQUENCE {
mcch-RepetitionPeriod-r9 ENUMERATED {rf32, rf64, rf128, rf256},
mcch-Offset-r9 INTEGER (0..10),
mcch-ModificationPeriod-r9 ENUMERATED {rf512, rf1024},
sf-AllocInfo-r9 BIT STRING (SIZE(6)),
signallingMCS-r9 ENUMERATED {n2, n7, n13, n19}
},
...
}
maxMBSFN-Area INTEGER ::= 8
I explained properly, if you still have any doubt then feel free to ask.