SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
The MCAN module is configured to allocate 4352 words in the Message RAM. The Message RAM has a width of 32 bits.
The following table presents the Message RAM Address Range for all device MCAN instances.
Module Instance | Region Name | Address Range | Size | |
---|---|---|---|---|
Start | End | |||
MCAN0 | MCAN0_MSGMEM_RAM | 2070 8000h | 2070 FFFFh | 32 KB |
MCAN1 | MCAN1_MSGMEM_RAM | 2071 8000h | 2071 FFFFh | 32 KB |
The Message RAM is capable to include each of the sections listed in Figure 12-2115. It is not necessary to configure each of the sections (a section in the Message RAM can be 0) and there is no restriction in regards to the sequence of the sections. For parity checking or ECC, the respective number of bits must to be added to each word.
The MCAN module addresses 32-bit words when addressing the Message RAM. The start addresses are configurable and are 32-bit word addresses.
The element size can be configured for:
The Host CPU configures the following information in the Message RAM:
The MCAN module does not check for errors in the Message RAM configuration. The configuration of the start addresses of the different sections and the number of elements of each section has to be done carefully to prevent falsification or loss of data.