SH7144_08 Datasheet, PDF (665/930 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family/SH7144 Series

17. Pin Function Controller (PFC)
17.1.9 Port E I/O Register L (PEIORL)
The port E I/O register L (PEIORL) is a 16-bit readable/writable register that is used to set the pins
on port E as inputs or outputs. Bits PE15IOR to PE0IOR correspond to pins PE15 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 PD0), TIOC pins
are functioning as inputs/outputs of MTU, and SCK2 and SCK3 pins are functioning as
inputs/outputs of SCI. In other states, PEIORL is disabled.
A given pin on port E will be an output pin if the corresponding PEIORL bit is set to 1, and an
input pin if the bit is cleared to 0.
The initial value of PEIORL is H'0000.
Rev.4.00 Mar. 27, 2008 Page 621 of 882
REJ09B0108-0400