SH7618 Datasheet, PDF (472/646 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

Section 16 Pin Function Controller (PFC)
16.1.5 Port C IO Register H and L (PCIORH and PCIORL)
PCIORH and PCIORL are 16-bit readable/writable registers that select the input/output directions
of the port C pins. Bits PC20IOR to PC0IOR correspond to pins PC20 to PC00 (the pin name
abbreviations for multiplexed functions are omitted). PCIORH is enabled when a port C pin
functions as a general input/output (PC20 to PC16), otherwise, disabled. PCIORL is enabled when
a port C pin functions as a general input/output (PC15 to PC00), otherwise, disabled.
Setting a bit in PCIORH and PCIORL to 1 makes the corresponding pin function as an output and
clearing a bit in PCIORH and PCIORL to 0 makes the pin function as an input.
Bits 15 to 5 in PCIORH are reserved. These bits are always read as 0. The write value should
always be 0.
The initial values of PCIORH and PCIORL are H'0000.
16.1.6 Port C Control Register H2, L1, and L2 (PCCRH2, PCCRL1, and PCCRL2)
PCCRH2, PCCRL1, and PCCRL2 are 16-bit readable/writable registers that select the pin
functions for the multiplexed port C pins.
• PCCRH2
Bit
15 to 9
8
7
Bit Name

PC20MD0

Initial
Value R/W Description
All 0 R Reserved
These bits are always read as 0. The write value should
always be 0.
0
R/W PC20 Mode
Selects the function of pin PC20/WOL.
0: PC20 input/output (port)
1: WOL output (EtherC)
0
R Reserved
This bit is always read as 0. The write value should
always be 0.
Rev. 6.00 Jun. 12, 2007 Page 440 of 610
REJ09B0131-0600