HD6433713 datasheet(124/324 Pages) RENESAS

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7.3 Port 1

7.3.1 Overview

Port 1 consists of four standard I/O pins, one standard input-only pin, and one high-voltage input-

only pin. Figure 7-4 shows the pin configuration.

Figure 7-4 Port 1 Pin Configuration

7.3.2 Register Configuration and Description

Table 7-8 shows the port 1 register configuration.

Table 7-8 Port 1 Registers

Name

Abbrev.

R/W

Initial Value

Address

Port mode register 1

PMR1

R/W

H'0C

H'FFEB

Port control register 1

PCR1

H'CC

H'FFE1

Port data register 1

PDR1

R/W

Not fixed

H'FFD1

Port mode register 4

PMR4

R/W

H'0F

H'FFEE

Port mode register 1 (PMR1)

P1 /V

P1 /EVENT

P1 /IRQ /TMOE

P1 /IRQ

disp

Port 1

(high-voltage input or power supply)

(input/input)

(IO/input/output)

(IO/input)

Note: IO indicates input/output.

Bit

Initial value

Read/Write

R/W

EVENT

R/W

IRQC5

R/W

IRQC4

R/W

—

IRQC0

R/W

—

IRQC1

R/W

NOISE

CANCEL

113

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