HD6417727BP160CV Datasheet, PDF (791/1098 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/ SH7700 Series

Section 24 USB HOST Module
Register: HcCommandStatus
Bits
Reset R/W
2
0b
R/W
1
0b
R/W
Offset: 08–0B
Description
BulkListFilled (BLF)
This bit is used to indicate that there are some TDs in the list.
This bit is set by HCD to the list when TD is added to ED.
When the host controller starts to process the head of the list, it
checks BF. As long as BulkListFilled is 0, the host controller
does not start to process the list. When BulklistFilled is 1, the
host controller starts to process the list to set BF to 0. When the
host controller finds TD in the list, the host controller sets
BulkListFilled to 1. When TD is never found in the list and HCD
does not set BulkListFilled, the host controller completes the
processing of the list. BulklistFilled is still 0 when the size list
processing is stopped.
0: The list is not processed (initial value)
1: The list is processed.
ControlListFilled (CLF)
This bit is used to indicate that there are some TDs in the
control list. This bit is set by HCD when TD is added to ED in
the control list.
When the host controller starts to process the head of the
control list, it checks CLK. As long as ControlListFilled is 0, the
host controller does not start to process the control list. If CF is
1, the host controller starts to process the control list and
ControlListFilled is set to 0. When the host controller finds TD in
the list, the host controller sets ControlListFilled to 1. When TD
is never found in the control list and HCD does not set
ControlListFilled, the host controller completes the processing
of the control list. ControllListFilled is still 0 when the control list
processing is stopped.
0: The list is not processed. (initial value)
1: The list is processed.
Rev.6.00 Mar. 27, 2009 Page 733 of 1036
REJ09B0254-0600