28.14.7.1.1. Status Register (Offset 0x0)
| Bit | Name | SW Access | HW Access | Default Value | Description |
|---|---|---|---|---|---|
| 31:10 | <reserved> | R | N/A | 0 | Reserved. |
| 9 | IRQ | R/W1C | R/W | 0 | Set when interrupt condition occurs. This bit is set by hardware and cleared by software. To clear this bit, software needs to write a 1 to this bit. This bit is set when a hardware event has a higher priority than a clear by a software event.
Note: This bit is cleared when Reset Dispatcher is set by software.
|
| 8 | Stopped on Early Termination | R | R/W | 0 | When the dispatcher is programmed to stop on early termination, this bit is set. Also set, when the write host is performing a packet transfer and does not receive EOP before the pre-determined amount of bytes are transferred, which is set in the descriptor length field. If you do not wish to use early termination you should set the transfer length of the descriptor to 0xFFFFFFFF ,which gives you the maximum packet based transfer possible (early termination is always enabled for packet transfers).
Note: This bit is cleared when Reset Dispatcher is set by software.
|
| 7 | Stopped on Error | R | R/W | 0 | When the dispatcher is programmed to stop on errors and when an error beat enters the write host the bit is set.
Note: This bit is cleared when Reset Dispatcher is set by software.
|
| 6 | Resetting | R | R/W | 0 | Set when you write to the software reset register and the mSGDMA is in the middle of a reset cycle. This reset cycle is necessary to make sure there are no incoming transfers on the fabric. When this bit de-asserts you may start using the mSGDMA again. |
| 5 | Stopped | R | R/W | 0 | Set when you either manually stop the mSGDMA, or you setup the dispatcher to stop on errors or early termination and one of those conditions occurred. If you manually stop the mSGDMA, this bit is asserted after the host completes any read or write operations that were already in progress. |
| 4 | ResponseBuffer Full | R | R/W | 0 | Set when the response buffer is full.
Note: Applicable only when Response Port parameter is enabled and configured to either Memory-Mapped or Streaming interface.
|
| 3 | ResponseBuffer Empty | R | R/W | 1 | Set when the response buffer is empty.
Note: Applicable only when Response Port parameter is enabled and configured to either Memory-Mapped or Streaming interface.
|
| 2 | Descriptor Buffer Full | R | R/W | 0 | Set when either the read or write command buffers are full. |
| 1 | DescriptorBuffer Empty | R | R/W | 1 | Set when both the read and write command buffers are empty. |
| 0 | Busy | R | R/W | 0 |
Set when
|