4.2 APB slave interface

The APB slave interface enables a host processor to access the TrustZone® TRNG.

The following table lists the APB slave interface signals.

Table 4-2 APB slave interface

Signal Direction Description
cc_psel Input Peripheral select signal.
cc_penable Indicates that the enable cycle is taking place.
cc_paddr[11:0] Peripheral address bus (TRNG address space requires 4KBytes).
cc_pwrite Peripheral write signal.
cc_pwdata[31:0] Peripheral write data bus.
cc_prdata[31:0] Output Peripheral read data bus.
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