SH7080 Datasheet, PDF (1183/1644 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 21 Pin Function Controller (PFC)
21.1.9 Port E I/O Registers L, H (PEIORL, PEIORH)
PEIORL and PEIORH are 16-bit readable/writable registers that are used to set the pins on port E
as inputs or outputs. PE21IOR to PE0IOR correspond to pins PE21 to PE0 (names of multiplexed
pins are here given as port names and pin numbers alone). PEIORL is enabled when the port E
pins are functioning as general-purpose inputs/outputs (PE15 to PE0) and the TIOC pin is
functioning as inputs/outputs of MTU2. In other states, PEIORL is disabled. PEIORH is enabled
when the port E pins are functioning as general-purpose inputs/outputs (PE21 to PE16), and the
TIOC pin is functioning as inputs/outputs of MTU2S. In other states, PEIORH is disabled.
A given pin on port E will be an output pin if the corresponding bit in PEIORH or PEIORL is set
to 1, and an input pin if the bit is cleared to 0.
However, bits 11, 9, and 5 of PEIORH and PEIORL are disabled in SH7083. PEIORH is disabled
in SH7084/SH7085. Bits 15 to 6 of PEIORH are reserved. These bits are always read as 0. The
write value should always be 0.
The initial values of PEIORL and PEIORH are H'0000, respectively.
• Port E I/O Register H (PEIORH)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
PE21 PE20 PE19 PE18 PE17 PE16
IOR IOR IOR IOR IOR IOR
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R
R
R R/W R/W R/W R/W R/W R/W
• Port E I/O Register L (PEIORL)
Bit: 15
PE15
IOR
Initial value: 0
R/W: R/W
14
PE14
IOR
0
R/W
13
PE13
IOR
0
R/W
12
PE12
IOR
0
R/W
11
PE11
IOR
0
R/W
10
PE10
IOR
0
R/W
9
PE9
IOR
0
R/W
8
PE8
IOR
0
R/W
7
PE7
IOR
0
R/W
6
PE6
IOR
0
R/W
5
PE5
IOR
0
R/W
4
PE4
IOR
0
R/W
3
PE3
IOR
0
R/W
2
PE2
IOR
0
R/W
1
PE1
IOR
0
R/W
0
PE0
IOR
0
R/W
Rev. 3.00 May 17, 2007 Page 1125 of 1582
REJ09B0181-0300