Referring to the Comportable guideline for peripheral device functionality, the module dma has the following hardware interfaces defined
- Primary Clock:
clk_i
- Other Clocks: none
- Bus Device Interfaces (TL-UL):
tl_d
- Bus Host Interfaces (TL-UL):
host_tl_h
- Peripheral Pins for Chip IO: none
| Port Name | Package::Struct | Type | Act | Width | Description |
|---|
| lsio_trigger | dma_pkg::lsio_trigger | uni | rcv | 1 | |
| sys | dma_pkg::sys | req_rsp | req | 1 | SoC System Bus (requests and responses), synchronous |
| ctn_tl_h2d | tlul_pkg::tl_h2d | uni | req | 1 | TL-UL host port for egress into CTN (request part), synchronous |
| ctn_tl_d2h | tlul_pkg::tl_d2h | uni | rcv | 1 | TL-UL host port for egress into CTN (response part), synchronous |
| racl_policies | top_racl_pkg::racl_policy_vec | uni | rcv | 1 | Incoming RACL policy vector from a racl_ctrl instance. The policy selection vector (parameter) selects the policy for each register. |
| racl_error | top_racl_pkg::racl_error_log | uni | req | 1 | RACL error log information of this module. |
| host_tl_h | tlul_pkg::tl | req_rsp | req | 1 | |
| tl_d | tlul_pkg::tl | req_rsp | rsp | 1 | |
| Interrupt Name | Type | Description |
|---|
| dma_done | Status | DMA operation has been completed. |
| dma_chunk_done | Status | Indicates the transfer of a single chunk has been completed. |
| dma_error | Status | DMA error has occurred. DMA_STATUS.error_code register shows the details. |
| Alert Name | Description |
|---|
| fatal_fault | This fatal alert is triggered when a fatal TL-UL bus integrity fault is detected. |
| Countermeasure ID | Description |
|---|
| DMA.BUS.INTEGRITY | End-to-end bus integrity scheme. |
| DMA.ASID.INTERSIG.MUBI | Destination and source ASID signals are multibit encoded. |
| DMA.RANGE.CONFIG.REGWEN_MUBI | DMA enabled memory range is software multibit lockable. |
| DMA.FSM.SPARSE | FSM is sparsely encoded. There is a single ctrl_state FSM. |