Samsung S5PC100, User Manual, Page: 850 / 1863

S5PC100 USER’S MANUAL (REV1.0) USB2.0 HS OTG
8.10-7
6.4 APPLICATION ACCESS TO THE CSRS
The Access column of each register description that follows specifies how the application and the core access the
register fields of the CSRs. The following conventions are used.
Read Only R The application has permission to read the Register field. Writes
to read-only fields have no effect.
Write Only W The application has permission to write in the Register field.
READ and Write R/ W The application has permission to read and writes in the Register
field. The application sets this field by writing 1’b1 and clears it by
writing 1’b0.
Read, Write, and
Self Clear
R/ W_SC Register field is read and written by the application (Read and
Write), and is cleared to 1'b0 by the core (Self Clear). The
conditions under which the core clears this field are explained in
detail in the field's description.
Read, Write, Self Set,
and Self Clear
R/ W_SS_SC Register field is read and written by the application (Read and
Write), set to 1'b1 by the core on certain USB events (Self Set),
and cleared to 1'b0 by the core (Self Clear).
Read, Self set, and
Write Clear
R/ SS_WC Register field is read by the application (Read), set to 1'b1 by the
core on certain internal or USB or AHB event (Self Set), and
cleared to 1'b0 by the application with a register write of 1'b1
(Write Clear). A register write of 1'b0 has no effect on this field.
Read, Write Set, and
Self Clear R/ WS_SC Register field is read by the application (Read), set to 1'b1 by the
application with a register write of 1'b1 (Write Set), and is cleared
to 1'b0 by the core (Self Clear). The application cannot clear this
type of field, and a register write of 1'b0 to this bit has no effect
on this field.
Read, Self set, and Self
Clear or Write Clear R/ SS_SC_WC Register field is read by the application (Read), set to 1'b1 by the
core on certain internal or USB or AHB events (Self Set), and
cleared to 1'b0 either by the core itself (Self Clear) or by the
application with a register write of 1'b1 (Write Clear). A register
write of 1’b0 to this bit has no effect on this field.