SH7205 Datasheet, PDF (1290/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 24 USB 2.0 Host/Function Module (USB)
Initial
Bit
Bit Name Value
R/W Description
5 to 1 
Undefined R Reserved
Undefined values are read from these bits. The write
value should always be 0.
0
RTPORT
0
R/W Root Hub Port Number of the Communication Target
Tree
Specifies the port number of the port of this module
to which the communication target tree is connected
(root hub port number). When the host controller
function is selected, this module refers to the setting
of this bit to generate packets.
0: PORT0
1: PORT1
Notes: 1. When the host controller function is selected, be sure to set the bits in this register
before starting the communication on each pipe.
2. The settings of the bits in this register should be modified when there is no active pipe
using the setting of these bits. The active pipe refers to a pipe that satisfies both of the
following conditions:
(1) The DEVSEL bit setting is designating this register.
(2) The PID bits of the pipe are set to BUF, or the pipe is the DCP and SUREQ = 1.
3. When the function controller function is selected, all the bits in this register should be
set to 0.
Rev. 1.00 Mar. 25, 2008 Page 1258 of 1868
REJ09B0372-0100