SH7706 Datasheet, PDF (555/749 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family/SH7700 Series

Section 18 I/O Ports
Section 18 I/O Ports
This LSI has 10 ports (ports A to J and SC). All port pins are multiplexed with other pin functions
(Pin Function Controller (PFC) maintains the selection of the pin functions and pull-up MOS
control). Each port has a data register which stores the data to the pins.
18.1 Port A
Port A is an 8-bit I/O port with the pin configuration shown in figure 18.1. Each pin has an input
pull-up MOS, which is controlled by Port A Control Register (PACR) in PFC.
Port A
PTA7 (I/O) / D23 (I/O)
PTA6 (I/O) / D22 (I/O)
PTA5 (I/O) / D21 (I/O)
PTA4 (I/O) / D20 (I/O)
PTA3 (I/O) / D19 (I/O)
PTA2 (I/O) / D18 (I/O)
PTA1 (I/O) / D17 (I/O)
PTA0 (I/O) / D16 (I/O)
Figure 18.1 Port A
18.1.1 Register Description
Port A has the following register. Refer to section 23, List of Registers, for more details of the
addresses and access sizes.
• Port A data register (PADR)
Rev. 5.00 May 29, 2006 page 507 of 698
REJ09B0146-0500