6.12.1 Features
The features of the Tightly Coupled RAM (TCRAM) module are:
- Acts as slave to the BTCM interface of the Cortex-R4 CPU
- Supports CPU's internal ECC scheme by providing 64-bit data and 8-bit ECC code
- Monitors CPU Event Bus and generates single-bit or multibit error interrupts
- Stores addresses for single-bit and multibit errors
- Provides CPU address bus integrity checking by supporting parity checking on the address bus
- Performs redundant address decoding for the RAM bank chip select and ECC select generation logic
- Provides enhanced safety for the RAM addressing by implementing two 36-bit wide byte-interleaved RAM banks and generating independent RAM access control signals to the two banks
- Supports auto-initialization of the RAM banks along with the ECC bits
- No support for bit-wise RAM accesses