SH7764 Datasheet, PDF (952/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 21 USB 2.0 Host/Function Module (USB)
Bit
Bit Name
8
CNTMD
Initial
Value R/W
0
R/W
Description
Continuous Transfer Mode
Specifies whether to use the selected pipe in
continuous transfer mode.
0: Non-continuous transfer mode
1: Continuous transfer mode
This bit is valid when PIPE1 to PIPE5 are selected
by the PIPESEL bits and bulk transfer is selected
(TYPE = 01).
Modify these bits while CSSTS is 0 and PID is NAK
and before the pipe is selected by the CURPIPE bits.
To modify these bits after completing USB
communication using the selected pipe, write 1 and
then 0 to ACLRM continuously through software to
clear the FIFO buffer assigned to the selected pipe
while the CSSTS, PID, and CURPIPE bits are in the
above-described state.
Before modifying these bits after modifying the PID
bits for the selected pipe from BUF to NAK, check
that CSSTS and PBUSY are 0. However, if the PID
bits have been modified to NAK by this module,
checking PBUSY through software is not necessary.
Rev. 1.00 Nov. 22, 2007 Page 896 of 1692
REJ09B0360-0100