SH7618 Datasheet, PDF (480/646 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

Section 16 Pin Function Controller (PFC)
16.1.9 Port E IO Register H and L (PEIORH and PEIORL)
PEIORH and PEIORL are 16-bit readable/writable registers that select the input/output directions
of the port E pins. Bits PE24IOR to PE0IOR correspond to pins PE24 to PE00 (the pin name
abbreviations for multiplexed functions are omitted). PEIORH is enabled when a port E pin
functions as a general input/output (PE24 to PE16), otherwise, disabled. PEIORL is enabled when
a port E pin functions as a general input/output (PE15 to PE00), otherwise, disabled.
Setting a bit in PEIORH and PEIORL to 1 makes the corresponding pin function as an output and
clearing a bit in PEIORH and PEIORL to 0 makes the pin function as an input.
Bits 15 to 9 in PAIORH are reserved. These bits are always read as 0. The write value should
always be 0.
The initial values of PEIORH and PEIORL are H'0000.
16.1.10 Port E Control Register H1, H2, L1, and L2 (PECRH1, PECRH2, PECRL1, and
PECRL2)
PECRH1, PECRH2, PECRL1, and PECRL2 are 16-bit readable/writable registers that select the
pin functions for the multiplexed port E pins.
• PECRH1
Bit
15 to 2
1
0
Bit Name

PE24MD1
PE24MD0
Initial Value R/W
All 0
R
0
R/W
0
R/W
(non-HIF
boot mode)
0
1
(HIF boot
mode)
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
PE24 Mode
Selects the function of pin PE24/HIFD15/CTS1.
00: PE24 input/output (port)
01: HIFD15 input/output (HIF)
10: CTS1 input (SCIF)
11: Setting prohibited
Rev. 6.00 Jun. 12, 2007 Page 448 of 610
REJ09B0131-0600