SH7720 Datasheet, PDF (1215/1524 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series

Section 34 Pin Function Controller (PFC)
34.1.5 Port E Control Register (PECR)
PECR is a 16-bit readable/writable register that selects the pin function and input pull-up MOS
control.
Bit
15, 14
Bit Name

Initial
Value
All 0
13
PE6MD1 1
12

0
11
PE5MD1 1
10

0
9
PE4MD1 1
8
PE4MD0 0
7
PE3MD1 1
6
PE3MD0 0
R/W
R
R/W
R
R/W
R
R/W
R/W
R/W
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
PE6 Mode
0: Other functions (See table 34.1.)
1: Port input (Pull-up MOS: Off)
Reserved
This bit is always read as 0. The write value should
always be 0.
PE5 Mode
0: Other functions (See table 34.1.)
1: Port input (Pull-up MOS: Off)
Reserved
This bit is always read as 0. The write value should
always be 0.
PE4 Mode
00: Other functions (See table 34.1.)
01: Port output
10: Port input (Pull-up MOS: On)
11: Port input (Pull-up MOS: Off)
PE3 Mode
00: Other functions (See table 34.1.)
01: Port output
10: Port input (Pull-up MOS: On)
11: Port input (Pull-up MOS: Off)
Rev. 3.00 Jan. 18, 2008 Page 1153 of 1458
REJ09B0033-0300