Datasheet
RL78/L12    CHAPTER 4 PORT FUNCTIONS 
R01UH0330EJ0200 Rev.2.00      99 
Dec 13, 2013 
4.2 Port Configuration 
Ports include the following hardware. 
Table 4-1. Port Configuration 
Item Configuration 
Control registers 
Port mode registers (PM1 to PM7, PM12, PM14) 
Port registers (P1 to P7, P12-P14) 
Pull-up resistor option registers (PU1, PU3 to PU5, PU7, PU12, PU14) 
Port input mode register (PIM1) 
Port output mode register (POM1) 
Port mode control registers (PMC1, PMC4, PMC12, PMC14) 
A/D port configuration register (ADPC) 
Peripheral I/O redirection register (PIOR) 
LCD port function registers (PFSEG0 PFSEG4) 
LCD input switch control register (ISCLCD) 
Port  • 32-pin products 
Total: 20 (CMOS I/O: 15, CMOS input: 3, N-ch open drain I/O: 2) 
• 44-pin products 
Total: 29 (CMOS I/O: 22, CMOS input: 5, N-ch open drain I/O: 2) 
• 48-pin products 
Total: 33 (CMOS I/O: 26, CMOS input: 5, N-ch open drain I/O: 2) 
• 52-pin products 
Total: 37 (CMOS I/O: 30, CMOS input: 5, N-ch open drain I/O: 2) 
• 64-pin products 
Total: 47 (CMOS I/O: 39, CMOS input: 5, CMOS output: 1, N-ch open drain I/O: 2) 
Pull-up resistor  • 32-pin products  Total: 13 
• 44-pin products  Total: 20 
• 48-pin products  Total: 24 
• 52-pin products  Total: 28 
• 64-pin products  Total: 37 










