R8C datasheet(130/199 Pages) RENESAS

130 / 199 page

R8C/10 Group

15. Programmable I/O Ports

Rev.1.20 Jan 27, 2006

page 120 of 180

REJ09B0019-0120

Port Pi register (i=0, 1, 3, 4)(1, 2)

SymbolAddressAfter reset

P000E016

Indeterminate

P100E116

Indeterminate

P300E516

Indeterminate

P400E816

Indeterminate

Bit name

Function

Bit symbol

b7b6b5b4b3b2b1b0

Pi_0Port Pi0 bit

Pi_1Port Pi1 bit

Pi_2Port Pi2 bit

Pi_3Port Pi3 bit

Pi_4Port Pi4 bit

Pi_5Port Pi5 bit

Pi_6Port Pi6 bit

Pi_7Port Pi7 bit

The pin level on any I/O port which is

set for input mode can be read by

reading the corresponding bit in this

The pin level on any I/O port which is

set for output mode can be controlled

by writing to the corresponding bit in

this register

0 : “L” level

1 : “H” level

(i = 0, 1, 3, 4)

NOTES:

1. Bits P3_4 to P3_6 in the P3 register are unavailable on this MCU. If it is necessary to set bits P3_4 to

P3_6, set to “0” (“L” level). When read, the content is indeterminate.

2. Bits P4_0 to P4_4 in the P4 register are unavailable on this MCU. If it is necessary to set bits P4_0 to

P4_4, set to “0” (“L” level). When read, the content is indeterminate.

Figure 15.7 P0 Register, P1 Register, P3 Register, and P4 Register

Figure 15.6 PD0 Register, PD1 Register, PD3 Register, and PD4 Register

Port Pi direction register (i=0, 1, 3, 4)(1, 2, 3)

SymbolAddressAfter reset

PD000E216

0016

PD100E316

0016

PD300E716

0016

PD400EA16

0016

Bit name

Function

Bit symbolRW

b7b6b5b4

b3b2b1b0

PDi_0

Port Pi0 direction bit

PDi_1

Port Pi1 direction bit

PDi_2

Port Pi2 direction bit

PDi_3

Port Pi3 direction bit

PDi_4

Port Pi4 direction bit

PDi_5

Port Pi5 direction bit

PDi_6

Port Pi6 direction bit

PDi_7

Port Pi7 direction bit

0 : Input mode

(Functions as an input port)

1 : Output mode

(Functions as an output port)

NOTES:

1. The PD0 register must be written to by the next instruction after setting the PRC2 bit in the PRCR

2. Bits PD3_4 to PD3_6 in the PD3 register are unavailable on this MCU. If it is necessary to set bits

PD3_4 to PD3_6, set to “0” (input mode). When read, the content is indeterminate.

3. Bits PD4_0 to PD4_4, PD4_6 and PD4_7 in the PD4 register are unavailable on this MCU. If it is

necessary to set bits PD4_0 to PD4_4, PD4_6 and PD4_7, set to “0” (input mode). When read,

the content is indeterminate.

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