Renesas rl78 User Manual

RL78/G1A

CHAPTER 4 PORT FUNCTIONS

R01UH0305EJ0200 Rev.2.00

110

Jul 04, 2013

4.3.6 Port mode control registers (PMCxx)

These registers set the digital I/O/analog input in 1-bit units.

Port mode control registers can be set by a 1-bit or 8-bit memory manipulation instruction.

Reset signal generation clears these registers to FFH.

Figure 4-6. Format of Port Mode Control Register

Symbol

7 6 5 4 3 2 1 0

Address

After

reset

R/W

PMC0

1 1 1 1

PMC03

PMC02

1 1

F0060H

FFH

R/W

PMC1 1 1

PMC15

PMC14

PMC13

PMC12

PMC11

PMC10

F0061H FFH R/W

PMC3

1 1 1 1 1 1

PMC31

PMC30

F0063H

FFH

R/W

PMC4

1 1 1 1 1 1

PMC41

F0064H

FFH

R/W

PMC5

1 1 1 1 1 1

PMC51

PMC50

F0065H

FFH

R/W

PMC7

1 1 1 1 1 1 1

PMC70

F0067H

FFH

R/W

PMC12

1 1 1 1 1 1 1

PMC120

F006CH

FFH

R/W

PMCmn

Pmn pin digital I/O/analog input selection

(m = 0, 1, 3 to 5, 7, 12; n = 0 to 5)

Digital I/O (alternate function other than analog input)

1 Analog

input

Cautions 1. Select input mode by using port mode registers 0, 1, 3 to 5, 7, 12 (PM0, PM1, PM3 to PM5, PM7,

PM12) for the ports which are set by the PMCxx register as analog input.

2. Do not set the pin set by the PMCxx register as digital I/O by the analog input channel

specification register (ADS).

3. Be sure to set bits that are not mounted to their initial values.

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