r5s72060w200fpv Renesas Electronics Corporation., r5s72060w200fpv Datasheet - Page 961

• Manufacturer Part Number: r5s72060w200fpv
• Description: 32-bit Risc Microcomputer Superhtm Risc Engine Family / Sh7200 Series
• Manufacturer: Renesas Electronics Corporation.

Section 20 I/O Ports
Section 20 I/O Ports
This LSI has six ports: A to F.
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.
20.1
Features
1. Total port number: 79 ports (I/O: 69 ports, Output: 10 ports)
• Port A: (I/O: 23 ports)
• Port B: (I/O: 3 ports, Input: 2 ports)
• Port C: (I/O: 2 ports)
• Port D: (I/O: 24 ports)
• Port E: (I/O: 17 ports)
• Port F: (Input: 8 ports)
2. The following pins in this LSI have weak keeper circuits that prevent the pins from floating
into intermediate voltage levels.
• Port A: PA0 to PA9, PA11 to PA13, and PA16 to PA25
• Port B: PB4, PB5, and PB9
• Port C: PC0 and PC1
• Port D: PD8 to PD31
• Port E: PE0 to PE6 and PE8 to PE16
The I/O pins include weak keeper circuits that fix the input level high or low when the I/O pins are
not driven from outside. Generally in the CMOS products, input levels in unused input pins must
be fixed by way of external pull-up or pull-down resistors. However, the I/O pins having weak
keeper circuits in this LSI can eliminate these outer circuits and reduce parts number of the
system. If the pull-up or pull-down resistors become necessary to fix the pin level, use the resistor
of 4.7 kΩ or smaller.
3. Pin Possessing Pull-up Resistor
• The PE7 pin in this LSI possesses a pull-up resistor
Rev. 2.00 Dec. 09, 2005 Page 937 of 1152
REJ09B0191-0200