11.3.2 Configuration

There are two host-to-client connections to optimize system bandwidth:
  • Multi-Client Hosts which are connected through the AHB bus matrix
    Table 11-4. AHB Multi-Client Hosts
    AHB Multi-Client Hosts
    Cortex-M23 Processor
    DSU - Device Service Unit
    DMAC - Direct Memory Access Controller / Data Access
    Table 11-5. AHB Clients
    AHB Clients
    Flash Memory
    AHB-APB Bridge A (APBA)
    AHB-APB Bridge B (APBB)
    AHB-APB Bridge C (APBC)
    SRAM Port 0 - Cortex-M23 Access
    SRAM Port 1 - DMAC Access
    SRAM Port 2 - DSU Access
    Boot ROM
  • Privileged SRAM-access Hosts which have a direct access to some dedicated SRAM ports
    Table 11-6. Privileged SRAM-access Hosts
    Privileged SRAM-access Hosts
    DMAC - Fetch 0 Access
    DMAC - Fetch 1 Access
    DMAC - Write Back 0 Access
    DMAC - Write Back 1 Access
    Note: Privileged SRAM-access Hosts rely on SRAM quality of service to define priority levels (SRAM Port ID). Refer to 11.4 SRAM Quality of Service for more information.
Figure 11-1. Host-to-Client Access