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    PDK API Guide for J721E
    
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Used to enable/disable features in DMSC based on usecase.
| subhdr | Magic and size for integrity check. | 
| main_isolation_enable | Enable/disable support for DMSC main isolation. If disabled, main isolation SCI message will be rejected with NAK. | 
| main_isolation_hostid | Host-ID allowed to send SCI-message for main isolation. If mismatch, SCI message will be rejected with NAK. | 
Data Fields | |
| struct tisci_boardcfg_substructure_header | subhdr | 
| uint8_t | main_isolation_enable | 
| uint16_t | main_isolation_hostid | 
| struct tisci_boardcfg_substructure_header tisci_boardcfg_control::subhdr | 
| uint8_t tisci_boardcfg_control::main_isolation_enable | 
| uint16_t tisci_boardcfg_control::main_isolation_hostid |