M32CSLASH8A datasheet(304/372 Pages) RENESAS

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M32C/8A Group

22. Programmable I/O Ports

Rev.1.00

Jul 15, 2007

Page 287 of 352

REJ09B0385-0100

Figure 22.8

PS2 Register, PS3 Register

b6 b5 b4

Symbol

PS2

Address

03B4h

After Reset

00X0 0000b

Function

Bit Symbol

Bit Name

−

(b5)

−

Reserved bits

−

(b7-b6)

Function Select Register A2

Port P8_1

output function select bit

PS2_1

0: I/O port/peripheral function input

1: Select by the PSL2_0 bit

Port P8_0

output function select bit

PS2_0

0: I/O port/peripheral function input

1: Select by the PSL2_1 bit

Unimplemented.

Write 0. Read as undefined value.

Set to 0

b7 b6 b5 b4

Symbol

PS3

Address

03B5h

After Reset

00h

Function

Bit Symbol

Bit Name

PS3_5

PS3_7

Port P9_3

output function select bit

Port P9_7

output function select bit

PS3_4

PS3_3

Port P9_5

output function select bit

Port P9_6

output function select bit

PS3_6

Function Select Register A3(1)

Port P9_4

output function select bit

Port P9_1

output function select bit

PS3_1

Port P9_2

output function select bit

PS3_2

0: I/O port/peripheral function input

1: Select by the PSL3_0 bit

Port P9_0

output function select bit

PS3_0

0: I/O port/peripheral function input

1: Select by the PSL3_1 bit

0: I/O port/peripheral function input

1: Select by the PSL3_2 bit

0: I/O port/peripheral function input

1: RTS3

0: I/O port/peripheral function input

1: RTS4

0: I/O port/peripheral function input

1: CLK4 output

0: I/O port/peripheral function input

1: TXD4/SDA4 output

0: I/O port/peripheral function input

1: Select by the PSL3_7 bit

NOTE:

1. Set the PS3 register immediately after the PRC2 bit in the PRCR register is set to 1 (write enable). Do not generate an interrupt

or a DMA or DMACII transfer between these two instructions.

Reserved bits

−

(b4-b2)

Set to 0

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