Port B - Fujitsu F2MC-8FX Hardware Manual

CHAPTER 9 I/O PORT
9.9

Port B

Port B is a general-purpose I/O port.
This section focuses on functions as a general-purpose I/O port.
See the chapters on each peripheral function for details about peripheral functions.
Port B Configuration
Port B is made up of the following elements.
• General-purpose I/O pins/peripheral function I/O pins
• Port B data register (PDRB)
• Port B direction register (DDRB)
• Input level selection register(ILSR3)
Port B Pins
Port B has eight I/O pins.
Table 9.9-1 lists the port B pins.
Table 9.9-1 Port B Pins
Pin name
PB0/SEG00/
TPCLK/ PB0 general-purpose I/O
CALPL
PB1/SEG01 PB1 general-purpose I/O SEG01 LCDC SEG1 output
PB2/SEG02 PB2 general-purpose I/O SEG02 LCDC SEG2 output
PB3/SEG03 PB3 general-purpose I/O SEG03 LCDC SEG3 output
PB4/SEG04 PB4 general-purpose I/O SEG04 LCDC SEG4 output
PB5/SEG05 PB5general-purpose I/O SEG05 LCDC SEG5 output
PB6/SEG06 PB6 general-purpose I/O SEG06 LCDC SEG6 output
PB7/SEG07 PB7 general-purpose I/O SEG07 LCDC SEG7 output
OD: Open drain, PU: Pull-up
140
Function Shared peripheral functions
SEG00 LCDC SEG0 output
TPCLK RTC TPCLK clock
output
CALPL RTC external
reference clock input
I/O type
Input Output OD PU
CMOS/
Hysteresis/Automotive
CMOS/
Hysteresis/Automotive
CMOS/
Hysteresis/Automotive
CMOS/
Hysteresis/Automotive
CMOS/
Hysteresis/Automotive
CMOS/
Hysteresis/Automotive
CMOS/
Hysteresis/Automotive
CMOS/
Hysteresis/Automotive
- -
LCD
- -
LCD
- -
LCD
- -
LCD
- -
LCD
- -
LCD
- -
LCD
- -
LCD