SH7263 Datasheet, PDF (1832/1862 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Main Revisions for this Edition
Item
25.3.4 Test Mode
Register (TESTMODE)
Page
1243
1244
Revision (See Manual for Details)
Table amended
Bit
Bit Name
14 to 9 ⎯
8
1
7 to 4 ⎯
Initial
Value R/W Description
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
R
Reserved
The value of this bit when read depends on the
values of the UACKEY0 and UACKEY1 bits. When
UACKEY0 and UACKEY1 are both cleared to 0, it is
always read as 1, and writing to this bit has no effect.
When UACKEY0 is cleared to 0 and UACKEY1 is set
to 1, it is always read as 0. In this case, the write
value should also always be 0.*
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
Table amended
Bit
Bit Name
3 to 0 UTST[3:0]
Initial
Value
0000
R/W
R/W
Description
Test Mode
Table 25.4 shows test mode operation of this
module. These bits control the USB test signal output
in high-speed mode.
[When the host controller function is selected]
When the host controller function is selected, these
bits may be set after writing 1 to DCFM and DRPD.
Writing to these bits terminates high-speed
operation.
Use the following procedure to set these bits:
(1) Perform a power-on reset.
(2) Set DCFM and DPRD to 1. (It is not necessary to
set HSE to 1.)
(3) Set USBE to 1.
(4) Set the value of these bits according to the test
details.
Use the following procedure to change the values of
these bits:
(1) (In the state following step (4) above) clear USBE
to 0.
(2) Set USBE to 1.
(3) Set the value of these bits according to the test
details.
Note: When the Test_SE0_NAK (1011) setting is
selected, the module does not output SOF
packets even when UACT is set to 1. When
the Test_Force_Enable (1101) setting is
selected and UACT is set to 1, the module
outputs SOF packets.
When setting the UTST bits, set the PID bits
for all the pipes to NAK. To return to normal
USB communication after test mode setting,
perform a power-on reset.
[When the function controller function is selected]
When the function controller function is selected,
write to these bits according to SetFeature requests
from the USB host during high-speed operation.
Note: The module will not transition to the suspend
state while the setting of these bits is any
value from 0001 to 0100.
Rev. 2.00 Mar. 14, 2008 Page 1798 of 1824
REJ09B0290-0200