H83069RF datasheet(86/1003 Pages) RENESAS

86 / 1003 page

Rev. 5.0, 09/04, page 64 of 978

3.5

Pin Functions in Each Operating Mode

The pin functions of ports 1 to 5, A and port 6

7 vary depending on the operating mode. Table 3.3

indicates their functions in each operating mode.

Table 3.3

Pin Functions in Each Mode

Port

Mode 1

Mode 2

Mode 3

Mode 4

Mode 5

Mode 7

Port 1

7 to A0

7 to P10*

7 to P10

Port 2

15 to A8

7 to P20*

7 to P20

Port 3

15 to D8

7 to P30

Port 4

7 to P40*

7 to D0*

7 to P40*

7 to D0*

7 to P40*

7 to P40

Port 5

19 to A16

3 to P50*

3 to P50

Port 6

φ*5

7 *

Port A

7 to PA4

6 to PA4,

20*

6 to PA4,

20*

7 to PA4*

7 to PA4

Notes: 1. Initial state. The bus mode can be switched by settings in ABWCR. These pins function

as P4

7 to P40 in 8-bit bus mode, and as D7 to D0 in 16-bit bus mode.

2. Initial state. These pins become address output pins when the corresponding bits in the

data direction registers (P1DDR, P2DDR, P5DDR) are set to 1.

3. Initial state. A

20 is always an address output pin. PA6 to PA4 are switched over to A23 to

21 output by writing 0 in bits 7 to 5 of BRCR.

4. Initial state. PA

7 to PA4 are switched over to A23 to A20 output by writing 0 in bits 7 to 4 of

BRCR.

5. Initial state. In modes 1 to 5

12 can be set as P67 by writing 1 to bit 7 in MSTCRH. In

mode 7 P6

7 can be set to φ output by writing 0 to bit 7 in MSTCRH.

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