Port Mode Registers (Pmxx) - Renesas RL78/G1P Hardware User Manual

RL78/G1P

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 Settings of Port
Related Register When Using Alternate Function.
Symbol 7 6
Note
PM1 PM17 PM16
Note
PM2 PM27 PM26
PM3 1 1
PM4 1 1
PM6 1 1
PMmn
0 Output mode (output buffer on)
1 Input mode (output buffer off)
Note These are not provided in 24-pin products.
Caution Be sure to set bits 6 and 7 of the PM3 register, bits 1 to 7 of the PM4 register, and bits 2 to 7 of the
PM6 register to "1".
R01UH0895EJ0100 Rev.1.00
Nov 29, 2019
Figure 4-16. Format of Port Mode Register
5 4 3
Note
PM15 PM14 PM13
Note Note
PM25 PM24 PM23
Note Note
PM35 PM34 PM33
1 1 1
1 1 1
2 1 0
Note
PM12 PM11 PM10
PM22 PM21 PM20
PM32 PM31 PM30
1 1 PM40
1 PM61 PM60
Pmn pin I/O mode selection
(m = 1 to 4, 6; n = 0 to 7)
CHAPTER 4 PORT FUNCTIONS
Address After reset
FFF21H FFH
FFF22H FFH
FFF23H FFH
FFF24H FFH
FFF26H FFH
R/W
R/W
R/W
R/W
R/W
R/W
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