20.8.10 Interrupt Pending
| Name: | INTPEND |
| Offset: | 0x20 |
| Reset: | 0x0000 |
| Property: | - |
| Bit | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | |
| PEND | BUSY | FERR | SUSP | TCMPL | TERR | ||||
| Access | R | R | R | R/W | R/W | R/W | |||
| Reset | 0 | 0 | 0 | 0 | 0 | 0 |
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
| ID[3:0] | |||||||||
| Access | R/W | R/W | R/W | R/W | |||||
| Reset | 0 | 0 | 0 | 0 | |||||
Bit 15 – PEND Pending
This bit will read '1' when the channel selected by Channel ID field (ID) is pending.
Bit 14 – BUSY Busy
This bit will read '1' when the channel selected by Channel ID field (ID) is busy.
Bit 13 – FERR Fetch Error
This bit will read '1' when the channel selected by Channel ID field (ID) fetched an invalid descriptor.
Bit 10 – SUSP Channel Suspend
This bit will read '1' when the channel selected by Channel ID field (ID) has pending Suspend interrupt.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Channel ID (ID) Suspend interrupt flag.
Bit 9 – TCMPL Transfer Complete
This bit will read '1' when the channel selected by Channel ID field (ID) has pending Transfer Complete interrupt.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Channel ID (ID) Transfer Complete interrupt flag.
Bit 8 – TERR Transfer Error
This bit is read one when the channel selected by Channel ID field (ID) has pending Transfer Error interrupt.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Channel ID (ID) Transfer Error interrupt flag.
Bits 3:0 – ID[3:0] Channel ID
These bits store the lowest channel number with pending interrupts. The number is valid if Suspend (SUSP), Transfer Complete (TCMPL) or Transfer Error (TERR) bits are set. The Channel ID field is refreshed when a new channel (with channel number less than the current one) with pending interrupts is detected, or when the application clears the corresponding channel interrupt sources. When no pending channels interrupts are available, these bits will always return zero value when read.
When the bits are written, indirect access to the corresponding Channel Interrupt Flag register is enabled.