NUC970 Technical Reference Manual
Publication Release Date: Dec. 15, 2015
- 746 -
Revision V1.30
NUC97
0
T
E
CHNIC
A
L
RE
F
E
RE
N
CE
MA
NUA
L
[3]
IE
Isochronous List Enable
When clear, this bit disables the Isochronous List when the Periodic List is enabled (so
Interrupt EDs may be serviced). While processing the Periodic List, the Host Controller
will check this bit when it finds an isochronous ED.
[2]
PLE
Periodic List Enable
When set, this bit enables processing of the Periodic (interrupt and isochronous) list. The
Host Controller checks this bit prior to attempting any periodic transfers in a frame.
[1:0]
CBSR
Control Bulk Service Ratio
Specifies the number of Control Endpoints serviced for every Bulk Endpoint.
00 = 1:1.
01 = 2:1.
10 = 3:1.
11 = 4:1.