Module d1_pac::usb1::ohci_memory_pointer_partition::hc_done_head

OHCI Done Head Base

Structs

• HC_DONE_HEAD_SPEC
  OHCI Done Head Base
• R
  Register hc_done_head reader
• W
  Register hc_done_head writer

Type Aliases

• DH_3_0_R
  Field dh_3_0 reader - Because the general TD length is 16 bytes, the memory structure for the TD must be aligned to a 16-byte boundary. So the lower bits in the PCED, through bit 0 to bit 3 must be zero in this field.
• DH_31_4_R
  Field dh_31_4 reader - When a TD is completed, HC writes the content of HcDoneHead to the NextTD field of the TD. HC then overwrites the content of HcDoneHead with the address of this TD. This is set to zero whenever HC writes the content of this register to HCCA. It also sets the WritebackDoneHead of HcInterruptStatus.
• DH_31_4_W
  Field dh_31_4 writer - When a TD is completed, HC writes the content of HcDoneHead to the NextTD field of the TD. HC then overwrites the content of HcDoneHead with the address of this TD. This is set to zero whenever HC writes the content of this register to HCCA. It also sets the WritebackDoneHead of HcInterruptStatus.