Renesas R5S72642 用户手册
Section 26 USB 2.0 Host/Function Module
Page 1464 of 2108
R01UH0134EJ0400 Rev. 4.00
Sep
24,
2014
SH7262 Group, SH7264 Group
Table 26.14 (1) Information Cleared by this Module by Setting ACLRM = 1
No.
Information Cleared by ACLRM Bit Manipulation
1
All the information in the FIFO buffer assigned to the pertinent pipe
2
When the host controller function is selected, the interval count value when the pertinent
pipe is for isochronous transfer
pipe is for isochronous transfer
Table 26.14 (2) Cases That Require Setting ACLRM to 1
No.
Cases in which Clearing the Information is Necessary
1
When it is necessary to clear all the information assigned to the pertinent pipe from the
FIFO buffer
FIFO buffer
2
When the interval count value is to be reset
3
When the BFRE setting is modified
4
When the transaction count function is forcibly terminated
26.3.37
PIPEn Transaction Counter Enable Registers (PIPEnTRE) (n = 1 to 5)
PIPEnTRE is a register that enables or disables the transaction counter corresponding to PIPE1 to
PIPE5, and clears the transaction counter.
PIPE5, and clears the transaction counter.
This register is initialized by a power-on reset.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit:
Initial value:
R/W:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R
R
R
R
R
R/W R/W*
1
R
R
R
R
R
R
R
R
R
—
—
—
—
—
—
TRENB TRCLR
—
—
—
—
—
—
—
—
Bit Bit
Name
Initial
Value R/W Description
Value R/W Description
15 to 10
All
0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
should always be 0.