R8CSLASH2G datasheet(91/344 Pages) RENESAS

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R8C/2G Group

8. I/O Ports

Rev.1.00

Apr 04, 2008

Page 71 of 318

REJ09B0387-0100

Figure 8.5

PDi (i = 0, 1, 3, 4, or 6) Register

Port Pi Direction Register (i = 0, 1, 3, 4, or 6)(1, 2, 3, 4)

Symbol

Address

After Reset

PD0

00E2h

00h

PD1

00E3h

00h

PD3

00E7h

00h

PD4

00EAh

00h

PD6

00EEh

00h

Bit Symbol

Bit Name

Function

NOTES:

Bits PD4_0 to PD4_2, 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_2, PD4_6, and PD4_7, set to 0 (input mode). When read, the content is 0.

To use port P4_4 as an output port, set the PD4_4 bit to 1 (output mode). Do not use port P4_4 as an input port.

Bits PD6_1, PD6_2, and PD6_7 in the PD6 register are unavailable on this MCU.

If it is necessary to set bits PD6_1, PD6_2, and PD6_7, set to 0 (input mode). When read, the content is 0.

Bits PD0_0 to PD0_3 in the PD0 register are unavailable on this MCU.

If it is necessary to set bits PD0_0 to PD0_3 , set to 0 (input mode). When read, the content is 0.

PDi_3

Port Pi_3 direction bit

Port Pi_1 direction bit

Port Pi_4 direction bit

Port Pi_2 direction bit

PDi_4

Port Pi_5 direction bit

0 : Input mode

(functions as an input port)

1 : Output mode

(functions as an output port)

Port Pi_6 direction bit

Port Pi_0 direction bit

b7 b6 b5 b4 b3 b2

PDi_2

b1 b0

PDi_1

PDi_0

Set the PD0 register by using the next instruction after setting the PRC2 bit in the PRCR register to 1 (w rite enable).

PDi_6

PDi_7

Port Pi_7 direction bit

PDi_5

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