SH7205 Datasheet, PDF (1249/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Bit
Bit Name
5
PBUSY
4
PINGE
Section 24 USB 2.0 Host/Function Module (USB)
Initial
Value
R/W
Description
0
R
Pipe Busy
Indicates whether DCP communication has actually
entered the NAK state after the setting of the PID
bits for the DCP has been modified from BUF to
NAK.
This bit is set to 1 upon start of the USB transaction
for DCP, and cleared to 0 upon completion of one
transaction.
0: Transition to NAK state not completed
1: Transition to NAK state completed
0
R/W PING Token Issue Enable*³
When the host controller function is selected,
setting this bit to 1 allows this module to issue the
PING token during transfers in the transmitting
direction and start a transfer in the transmitting
direction with the PING transaction.
When having detected the ACK handshake during a
PING transaction, this module performs an OUT
transaction as the next transaction.
When having detected the NAK handshake during a
OUT transaction, this module performs a PING
transaction as the next transaction.
When the host controller function is selected,
clearing this bit to 0 prevents this module from
issuing the PING token during transfers in the
transmitting direction and all transfers in the
transmitting direction are performed as OUT
transactions.
0: Disables issuing PING token.
1: Enables normal PING operation.
Rev. 1.00 Mar. 25, 2008 Page 1217 of 1868
REJ09B0372-0100