Renesas R5S72621 User Manual
Section 9 Bus State Controller
R01UH0134EJ0400 Rev. 4.00
Page 289 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
9.4.9
AC Characteristics Switching Key Register (ACKEYR)
ACKEYR is an 8-bit write-only register to access the AC characteristics switching register
(ACSWR). The write value is ignored and the read value is undefined.
(ACSWR). The write value is ignored and the read value is undefined.
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
W
W
W
W
W
W
W
W
Bit:
Initial value:
R/W:
ACKEY[7:0]
Bit Bit
Name
Initial
Value R/W
Value R/W
Description
7 to 0
ACKEY[7:0]
W
AC
Key
Writing to these bits is required to write to ACSWR.
The write value is arbitrary.
The write value is arbitrary.