SH7205 Datasheet, PDF (1539/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 28 I/O Ports
Section 28 I/O Ports
This LSI has ten ports: A to H, J, and K.
All port pins are multiplexed with other pin functions. The functions of the multiplex pins are
selected by means of the pin function controller (PFC).
Each port is provided with data registers for storing the pin data and port registers for reading the
states of the pins.
28.1 Features
1. Total number of port pins: 107 pins (I/O: 96 pins, Input: 11 pins)
• Port A: (Input: 16 pins)
• Port B: (I/O: 19 pins)
• Port C: (I/O: 11 pins)
• Port D: (I/O: 3 pins)
• Port E: (I/O: 11 pins, Input: 3 pins)
• Port F: (I/O: 5 pins)
• Port G: (Input: 8 pins)
• Port H: (I/O: 16 pins)
• Port J: (I/O: 13 pins)
• Port K: (I/O: 2 pins)
2. Pins with a weak keeper
The following pins of this LSI have a weak keeper circuit or pull-up circuit (PB18) that
prevents the pin from floating into intermediate voltage levels.
• Port A: PA0 to PA15
• Port B: PB0 to PB18
• Port C: PC0 to PC10
• Port D: PD0 to PD2
• Port E: PE0 to PE7
• Port F: PF2 to PF4
• Port H: PH0 to PH15
• Port J: PJ0 to PJ12
• Port K: PK0 and PK1
Rev. 1.00 Mar. 25, 2008 Page 1507 of 1868
REJ09B0372-0100