AMBA-PV Extensions to OSCI TLM 2.0 Developer Guide: 2.4. Mapping for AMBA 3 buses

2.4. Mapping for AMBA 3 buses

The control signals mapping for AXI and AHB buses is listed in Table 2.6. The APB bus does not use these control signals.

Table 2.6. Signals mapping for amba_pv_control

amba_pv_control	AXI	AHB
`bool is_privileged() const;` `void set_privileged(bool = true);`	AxPROT[0]	HPROT[1]
`bool is_instruction() const;` `void set_instruction(bool = true);`	AxPROT[2]	HPROT[0]
`bool is_non_secure() const;` `void set_non_secure(bool = true);`	AxPROT[1]	-
`bool is_locked() const;` `void set_locked(bool = true);`	AxLOCK = 2	HLOCK
`bool is_exclusive() const;` `void set_exclusive(bool = true);`	AxLOCK = 1	-
`void set_bufferable(bool = true);` `bool is_bufferable() const;`	AxCACHE[3:0]	HPROT[2]
`void set_cacheable(bool = true);` `bool is_cacheable() const;`	AxCACHE[3:0]	HPROT[3]
`void set_read_allocate(bool = true);` `bool is_read_allocate() const;`	AxCACHE[3:0]	-
`void set_write_allocate(bool = true);` `bool is_write_allocate() const;`	AxCACHE[3:0]	-

The response mapping for AXI, AHB and APB buses is listed in Table 2.7:

Table 2.7. Response mapping for amba_pv_resp_t

amba_pv_resp_t	AXI xRESP	AHB HRESP	APB PSLVERR
`AMBA_PV_OKAY`	OKAY	OKAY	LOW
`AMBA_PV_EXOKAY`	EXOKAY	-	-
`AMBA_PV_SLVERR`	SLVERR	ERROR	HIGH
`AMBA_PV_DECERR`	DECERR	ERROR	HIGH

Note

APB peripherals are not required to support the PSLVERR signal. If a peripheral does not support this signal then the corresponding appropriate response is AMBA_PV_OKAY.

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