SH7618 Datasheet, PDF (489/646 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

Section 17 I/O Ports
Section 17 I/O Ports
This LSI has 26 ports (ports A, B, C, D, and E). Port A, port B, port C, port D, and port E are 10-
bit, 14-bit, 21-bit, 8-bit, and 25-bit I/O port, respectively. The pins of each port are multiplexed
with other functions. The pin function controller (PFC) handles the selection of multiplex pin
functions. Each port has a data register to store data of pin.
17.1 Port A
Port A of this LSI is an I/O port with ten pins as shown in figure 17.1.
Port A
PA16 (input/output)/A16 (output)
PA17 (input/output)/A17 (output)
PA18 (input/output)/A18 (output)
PA19 (input/output)/A19 (output)
PA20 (input/output)/A20 (output)
PA21 (input/output)/A21 (output)
PA22 (input/output)/A22 (output)
PA23 (input/output)/A23 (output)
PA24 (input/output)/A24 (output)
PA25 (input/output)/A25 (output)
Figure 17.1 Port A
17.1.1 Register Description
Port A is a 10-bit I/O port that has a following register. For details on the address of this register
and the states of this register in each processing state, see section 20, List of Registers.
• Port A data register H (PADRH)
17.1.2 Port A Data Register H (PADRH)
PADRH is a 16-bit readable/writable register which stores data for port A. Bits PA25DR to
PA16DR correspond to pins PA25 to PA16. (Description of multiplexed functions is omitted.)
Rev. 6.00 Jun. 12, 2007 Page 457 of 610
REJ09B0131-0600