SH7641 Datasheet, PDF (882/1036 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family / SH7641 Series

Section 22 Pin Function Controller (PFC)
22.1.6 Port E I/O Register (PEIOR)
PEIOR is a 16-bit readable/writable register that selects the input/output direction of the port E
pins.
The PE15IOR to PE0IOR bits correspond to the PE15/TIOC0A to PE0/TIOC4D pins. PEIOR is
valid only when the port E pins function as the TIOC pins of the MTU (other functions).
Otherwise, PEIOR is invalid. When the port E pins function as the TIOC pins of the MTU (other
functions), setting a bit in PEIOR to 1 sets the pin to output and setting a bit in PEIOR to 0 sets
the pin to input. PEIOR is initialized to H'0000 by a power-on reset, and it is not initialized by a
manual reset, in standby mode, or in sleep mode.
Initial
Bit
Bit Name Value R/W Description
15
PE15IOR 0
14
PE14IOR 0
13
PE13IOR 0
12
PE12IOR 0
11
PE11IOR 0
10
PE10IOR 0
9
PE9IOR
0
R/W When the port E pins function as the TIOC pins of the
R/W ^{MTU (other functions):}
R/W ^{PEnIOR (n = 0 to 15) controls the input/output direction}
of the pins.
R/W _{0: MTU input capture input}
R/W _{1: MTU output compare output}
R/W _{PEIOR is invalid when the port E pins function as pins}
R/W other than the TIOC pins of the MTU.
8
PE8IOR
0
R/W
7
PE7IOR
0
R/W
6
PE6IOR
0
R/W
5
PE5IOR
0
R/W
4
PE4IOR
0
R/W
3
PE3IOR
0
R/W
2
PE2IOR
0
R/W
1
PE1IOR
0
R/W
0
PE0IOR
0
R/W
Rev. 4.00 Sep. 14, 2005 Page 832 of 982
REJ09B0023-0400