Datasheet

RL78/L12 CHAPTER 4 PORT FUNCTIONS
R01UH0330EJ0200 Rev.2.00 106
Dec 13, 2013
For the registers mounted on others than 64-pin products, refer to table 4-3.
4.3.1 Port mode registers (PMxx)
These registers specify input or output mode for the port in 1-bit units.
These registers can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets these registers to FFH.
When port pins are used as alternate-function pins, set the port mode register by referencing 4.5 Register Settings
When Using Alternate Function.
Figure 4-1. Format of Port Mode Register (64-pin products)
Symbol 7 6 5 4 3 2 1 0 Address After reset R/W
PM1 PM17 PM16 PM15 PM14 PM13 PM12 PM11 PM10 FFF21H FFH R/W
PM2 1 1 1 1 1 1 PM21 PM20 FFF22H FFH R/W
PM3 1 1 1 1 1 PM32 PM31 PM30 FFF23H FFH R/W
PM4 1 1 1 1 PM43 PM42 PM41 PM40 FFF24H FFH R/W
PM5 1 1 1 PM54 PM53 PM52 PM51 PM50 FFF25H FFH R/W
PM6 1 1 1 1 1 1 PM61 PM60 FFF26H FFH R/W
PM7 1 1 1 PM74 PM73 PM72 PM71 PM70 FFF27H FFH R/W
PM12 PM127 PM126 PM125 1 1 1 1 PM120 FFF2CH FFH R/W
PM14 PM147 PM146 PM145 PM144 PM143 PM142 PM141 PM140 FFF2EH FFH R/W
PMmn
Pmn pin I/O mode selection
(m = 1 to 7, 12, 14; n = 0 to 7)
0 Output mode (output buffer on)
1 Input mode (output buffer off)
Caution Be sure to set bits that are not mounted to their initial values.
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