diepdma4

DMA Addressing.
Module Instance Base Address Register Address
usb0 0xFFB00000 0xFFB00994
usb1 0xFFB40000 0xFFB40994

Offset: 0x994

Access: RW

Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16

diepdma4

RW 0x0

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

diepdma4

RW 0x0

diepdma4 Fields

Bit Name Description Access Reset
31:0 diepdma4

Holds the start address of the external memory for storing or fetching endpoint data. for control endpoints, this field stores control OUT data packets as well as SETUP transaction data packets. When more than three SETUP packets are received back-to-back, the SETUP data packet in the memory is overwritten. This register is incremented on every AHB transaction. The application can give only a DWORD-aligned address. When Scatter/Gather DMA mode is not enabled, the application programs the start address value in this field. When Scatter/Gather DMA mode is enabled, this field indicates the base pointer for the descriptor list.

RW 0x0