RL78/G1H CHAPTER 5 PORT FUNCTIONS
R01UH0575EJ0120 Rev. 1.20 Page 81 of 920
Dec 22, 2016
5.3.4 Port input mode registers (PIMxx)
These registers set the input buffer in 1-bit units.
TTL input buffer can be selected during serial communication with an external device of the different potential.
Port input mode registers can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears these registers to 00H.
Figure 5 - 4 Format of Port input mode register
Caution Be sure to set bits that are not mounted to their initial values.
Symbol76543210 Address After reset R/W
PIM0000PIM04PIM03000 F0040H 00H R/W
PIM8000000PIM81PIM80F0048H 00H R/W
PIM140000PIM143PIM14200 F004EH 00H R/W
PIMmn Pmn pin input buffer selection (m = 0, 1, 3 to 5, 8, 14; n = 0 to 7)
0 Normal input buffer
1 TTL input buffer
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