MB95710M Series
MB95770M Series
Document Number: 002-09307 Rev. *D
Page 79 of 172
• Operation at reset
If the CPU is reset, all bits in the DDRB register are initialized to “0” and port input is enabled.
• Operation in stop mode and watch mode
• If the pin state setting bit in the standby control register (STBC:SPL) is set to “1” and the device transits to stop
mode or watch mode, the pin is compulsorily made to enter the high impedance state regardless of the DDRB reg-
ister value. The input of that pin is locked to “L” level and blocked in order to prevent leaks due to input open.
• If the pin state setting bit is “0”, the state of the port I/O or that of the peripheral function I/O remains unchanged
and the output level is maintained.
18.10 Port C
Port C is a general-purpose I/O port. This section focuses on its functions as a general-purpose I/O port. For details of
peripheral functions, refer to their respective chapters in “New 8FX MB95710M/770M Series Hardware Manual”.
18.10.1 Port C configuration
Port C is made up of the following elements.
• General-purpose I/O pins/peripheral function I/O pins
• Port C data register (PDRC)
• Port C direction register (DDRC)
18.10.2 Block diagrams of port C
• PC0/SEG02 pin
This pin has the following peripheral function:
• LCDC SEG02 output pin (SEG02)
• PC1/SEG03 pin
This pin has the following peripheral function:
• LCDC SEG03 output pin (SEG03)
• PC2/SEG04 pin
This pin has the following peripheral function:
• LCDC SEG04 output pin (SEG04)
• PC3/SEG05 pin
This pin has the following peripheral function:
• LCDC SEG05 output pin (SEG05)
• PC4/SEG06 pin
This pin has the following peripheral function:
• LCDC SEG06 output pin (SEG06)
• PC5/SEG07 pin
This pin has the following peripheral function:
• LCDC SEG07 output pin (SEG07)
• PC6/SEG08 pin
This pin has the following peripheral function:
• LCDC SEG08 output pin (SEG08)
• PC7/SEG09 pin
This pin has the following peripheral function:
• LCDC SEG09 output pin (SEG09)