SH7670 Datasheet, PDF (1034/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 23 Pin Function Controller (PFC)
23.1.3 Port B I/O Register L (PBIORL)
PBIORL is a 16-bit readable/writable register that selects the input/output direction for the port B
pins. Bits PB7IOR to PB0IOR correspond to pins PB07 to PB00 (multiplexed pin names other
than port names are omitted), respectively. PBIORL is enabled when the function of the port B
pins is set to general-purpose I/O (PB07 to PB00), and is disabled in other cases.
When a bit in PBIORL is set to 1, the corresponding pin is set to output, and when set to 0, the pin
is set to input.
Bits 15 to 8 in PBIORL are reserved. These bits are always read as 0. The write value should
always be 0.
The initial value of PBIORL is H'0000.
Rev. 1.00 Nov. 14, 2007 Page 1008 of 1262
REJ09B0437-0100