Renesas SH7264 User Manual
Section 32 General Purpose I/O Ports
R01UH0134EJ0400 Rev. 4.00
Page 1693 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
(2) Port B Control Register 4 (PBCR4)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0/1
0
0
0
0/1
0
0
0
0/1
0
0
0
0/1
R
R
R/W
R/W
R
R
R/W
R/W
R
R
R/W
R/W
R
R
R/W
R/W
-
-
-
PB18MD[1:0]
PB17MD[1:0]
PB16MD[1:0]
PB19MD[1:0]
-
-
-
-
-
Bit:
Initial value:
R/W:
Bit
Bit Name
Initial Value
R/W
Description
15, 14
All
0
R
Reserved
These bits are always read as 0. The write
value should always be 0.
value should always be 0.
13, 12
PB19MD[1:0]
00/01
R/W
PB19 Mode
Select the function of the PB19.
Boot mode 0
00: Setting prohibited
01: A19 (initial value)
10: Setting prohibited
11: Setting prohibited
Boot mode 1 to 3
00: PB19 (initial value)
01: A19
10: TIOC4D
11: Setting prohibited
11, 10
All
0
R
Reserved
These bits are always read as 0. The write
value should always be 0.
value should always be 0.
9, 8
PB18MD[1:0]
00/01
R/W
PB18 Mode
Select the function of the PB18.
Boot mode 0
00: Setting prohibited
01: A18 (initial value)
10: Setting prohibited
11: Setting prohibited
Boot mode 1 to 3
00: PB18 (initial value)
01: A18
10: TIOC4C
11: Setting prohibited
7, 6
All
0
R
Reserved
These bits are always read as 0. The write
value should always be 0.
value should always be 0.