SPRS945E January 2017 – April 2020 TMS320F280040 , TMS320F280040C , TMS320F280041 , TMS320F280041C , TMS320F280045 , TMS320F280048 , TMS320F280048C , TMS320F280049 , TMS320F280049C
PRODUCTION DATA.
RAM blocks which are dedicated to each subsystem and are accessible only to its CPU and CLA, are called local shared RAMs (LSx RAMs).
All LSx RAM blocks have parity. These memories are secure and have the access protection (CPU write/CPU fetch) feature.
By default, these memories are dedicated only to the CPU, and the user could choose to share these memories with the CLA by configuring the MSEL_LSx bit field in the LSxMSEL registers appropriately (see Table 6-6).
MSEL_LSx | CLAPGM_LSx | CPU ALLOWED ACCESS | CLA1 ALLOWED ACCESS | COMMENT |
---|---|---|---|---|
00 | X | All | – | LSx memory is configured as CPU dedicated RAM. |
01 | 0 | All | Data Read
Data Write Emulation Data Read Emulation Data Write |
LSx memory is shared between CPU and CLA1. |
01 | 1 | Emulation Read
Emulation Write |
Fetch Only
Emulation Program Read Emulation Program Write |
LSx memory is CLA1 program memory. |