SH7670 Datasheet, PDF (768/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 17 USB 2.0 Host/Function Module (USB)
PID
01 (BUF)
Transfer Type
Isochronous
10 (STALL) or Bulk or interrupt
11 (STALL)
Isochronous
Transfer Direction
(DIR Bit)
Operation of This Module
Transmitting
direction (DIR = 1)
Transmits data in response to the token
from the USB host if the corresponding
FIFO buffer is ready for transmission.
Transmits the zero-length packet if not
ready.
Operation does not Returns STALL in response to the token
depend on the
from the USB host.
setting.
Operation does not Returns nothing in response to the
depend on the
token from the USB host.
setting
(2) PIPEnCTR (n = 6 to 9)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
BSTS — CSCLR CSSTS —
— ACLRM SQCLR SQSET SQMON PBUSY —
—
—
PID[1:0]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R
R R/W*¹ R/W R
R R/W R/W*¹ R/W*¹ R
R
R
R
R R/W R/W
Bit
Bit Name
Initial
Value R/W Description
15
BSTS
0
R
Buffer Status
Indicates the FIFO buffer status for the pertinent
pipe.
0: Buffer access is disabled.
1: Buffer access is enabled.
The meaning of this bit depends on the settings of
the DIR, BFRE, and DCLRM bits as shown in table
17.11.
14

0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
Rev. 1.00 Nov. 14, 2007 Page 742 of 1262
REJ09B0437-0100