Alif Semiconductor /AE302F80C1557LE_CM55_HP_View /DMA1_SEC /DMA_FTR[4]

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as DMA_FTR[4]

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (Val_0x0)UNDEF_INSTR 0 (Val_0x0)OPERAND_INVALID 0 (Val_0x0)CH_EVNT_ERR 0 (Val_0x0)CH_PERIPH_ERR 0 (Val_0x0)CH_RDWR_ERR 0 (MFIFO_ERR)MFIFO_ERR 0 (Val_0x0)ST_DATA_UNAVAILABLE 0 (Val_0x0)INSTR_FETCH_ERR 0 (Val_0x0)DATA_WRITE_ERR 0 (Val_0x0)DATA_READ_ERR 0 (Val_0x0)DBG_INSTR 0 (Val_0x0)LOCKUP_ERR

LOCKUP_ERR=Val_0x0, DATA_WRITE_ERR=Val_0x0, DBG_INSTR=Val_0x0, UNDEF_INSTR=Val_0x0, DATA_READ_ERR=Val_0x0, CH_EVNT_ERR=Val_0x0, CH_PERIPH_ERR=Val_0x0, INSTR_FETCH_ERR=Val_0x0, ST_DATA_UNAVAILABLE=Val_0x0, CH_RDWR_ERR=Val_0x0, OPERAND_INVALID=Val_0x0

Description

Fault Type for DMA Channel (n) Register

Fields

UNDEF_INSTR

This bit indicates whether the DMA channel thread was attempting to execute an undefined instruction. This fault is a precise abort.

0 (Val_0x0): Defined instruction.

1 (Val_0x1): Undefined instruction.

OPERAND_INVALID

This bit indicates whether the DMA channel thread was attempting to execute an instruction operand that was not valid for the configuration of the DMAC. This fault is a precise abort.

0 (Val_0x0): Valid operand.

1 (Val_0x1): Invalid operand.

CH_EVNT_ERR

This bit indicates whether the DMA channel thread attempts to execute DMAWFE or DMASEV with inappropriate security permissions. This fault is a precise abort.

0 (Val_0x0): A DMA channel thread in the non-secure state is not violating the security permissions.

1 (Val_0x1): A DMA channel thread in the non-secure state attempted to execute either:

  • DMAWFE to wait for a secure event.
  • DMASEV to create a secure event or secure interrupt.
CH_PERIPH_ERR

This bit indicates whether a DMA channel thread, in the non-secure state, attempts to execute DMAWFP, DMALDP, DMASTP, or DMAFLUSHP with inappropriate security permissions. This fault is a precise abort.

0 (Val_0x0): A DMA channel thread in the non-secure state is not violating the security permissions.

1 (Val_0x1): A DMA channel thread in the non-secure state attempted to execute either:

  • DMAWFP to wait for a secure peripheral.
  • DMALDP or DMASTP to notify a secure peripheral.
  • DMAFLUSHP to flush a secure peripheral.
CH_RDWR_ERR

This bit indicates whether a DMA channel thread, in the non-secure state, attempts to program the DMA_CCRn register to perform a secure read or secure write. This fault is a precise abort.

0 (Val_0x0): A DMA channel thread in the non-secure state is not violating the security permissions.

1 (Val_0x1): A DMA channel thread in the non-secure state attempted to perform a secure read or secure write.

MFIFO_ERR

This bit indicates whether the MFIFO prevented the DMA channel thread from executing DMALD or DMAST. Depending on the instruction:

  • DMALD 0x0: MFIFO contains sufficient space. 0x1: MFIFO is too small to hold the data that DMALD requires.
  • DMAST 0x0: MFIFO contains sufficient data. 0x1: MFIFO is too small to store the data to enable DMAST to complete. This fault is an imprecise abort.
ST_DATA_UNAVAILABLE

This bit indicates whether the MFIFO did not contain the data to enable the DMAC to perform the DMAST. This fault is a precise abort.

0 (Val_0x0): MFIFO contains all the data to enable the DMAST to complete.

1 (Val_0x1): Previous DMALDs have not put enough data in the MFIFO to enable the DMAST to complete.

INSTR_FETCH_ERR

This bit indicates the AXI response that the DMAC receives on the RRESP bus, after the DMA channel thread performs an instruction fetch. This fault is a precise abort.

0 (Val_0x0): OKAY response.

1 (Val_0x1): EXOKAY, SLVERR, or DECERR response.

DATA_WRITE_ERR

This bit indicates the AXI response that the DMAC receives on the BRESP bus, after the DMA channel thread performs a data write. This fault is an imprecise abort.

0 (Val_0x0): OKAY response.

1 (Val_0x1): EXOKAY, SLVERR, or DECERR response.

DATA_READ_ERR

This bit indicates the AXI response that the DMAC receives on the RRESP bus, after the DMA channel thread performs a data read. This fault is an imprecise abort.

0 (Val_0x0): OKAY response.

1 (Val_0x1): EXOKAY, SLVERR, or DECERR response.

DBG_INSTR

If the DMA channel aborts, this bit indicates whether the erroneous instruction was read from the system memory or from the debug interface. This fault is an imprecise abort but the bit is only valid when a precise abort occurs.

0 (Val_0x0): Instruction that generated an abort was read from system memory.

1 (Val_0x1): Instruction that generated an abort was read from the debug interface.

LOCKUP_ERR

This bit indicates whether the DMA channel has locked-up because of resource starvation. This fault is an imprecise abort.

0 (Val_0x0): DMA channel has adequate resources.

1 (Val_0x1): DMA channel has locked-up because of insufficient resources.

Links

() ()