SH7147 Datasheet, PDF (792/1108 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Section 18 Pin Function Controller (PFC)
18.1.8 Port E Control Registers L1 to L4, H1, H2 (PECRL1 to PECRL4, PECRH1,
PECRH2)
PECRL1 to PECRL4, PECRH1 and PECRH2 are 16-bit readable/writable registers that are used
to select the functions of the multiplexed pins on port E.
• Port E Control Register H2 (PECRH2)
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
-
-
-
PE21 PE21
MD1 MD0
-
-
PE20 PE20
MD1 MD0
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
R R/W R/W
Initial
Bit
Bit Name Value R/W Description
15 to 6 ⎯
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
5
PE21MD1 0
R/W PE21 Mode
4
PE21MD0 0
R/W Select the function of the PE21/WRL/TIOC4DS pin.
00: PE21 I/O (port)
01: TIOC4DS I/O (MTU2S)
10: WRL output (BSC)*
Other than above: Setting prohibited
3, 2
⎯
All 0
R
Reserved
These bits are always read as 0. The write value
should always be 0.
1
PE20MD1 0
R/W PE20 Mode
0
PE20MD0 0
R/W Select the function of the PE20/TIOC4CS pin.
00: PE20 I/O (port)
01: TIOC4CS I/O (MTU2S)
Other than above: Setting prohibited
Note: * This function is enabled only in the on-chip ROM enabled/disabled external-extension
mode. Do not set 1 in single-chip mode.
Rev. 3.00 Oct. 06, 2008 Page 768 of 1080
REJ09B0230-0300