32186 datasheet(230/1032 Pages) RENESAS

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INPUT/OUTPUT PORTS AND PIN FUNCTIONS

8-28

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

P22 Peripheral Function Select Register (P22SMOD)

<Address: H’0080 0776>

Bit Name

Function

P220SMD

0: CTX0

Port P220 peripheral function select bit

1: HACK#

P221SMD

0: CRX0

Port P221 peripheral function select bit

1: HREQ#

2, 3

No function assigned. Fix to "0."

P224SMD

0: A11

Port P224 peripheral function select bit (Note 1)

1: CS2#

P225SMD

0: A12

Port P225 peripheral function select bit (Note 1)

1: CS3#

6, 7

No function assigned. Fix to "0."

Note 1: During single-chip mode, selecting the external bus interface signal function is prohibited.

Note: • The value of this register can only be modified when the corresponding P22 operation mode register bit = 0 (set for port). Then

set the corresponging P22 operation mode register bit to "1."

P22 Operation Mode Register (P22MOD)

<Address: H’0080 0756>

Bit Name

Function

P220MD

0: P220

Port P220 operation mode bit

1: CTX0/HACK# (Note 1)

P221MD

0: P221

Port P221 operation mode bit

1: CRX0/HREQ# (Note 1)

2, 3

No function assigned. Fix to "0."

P224MD

0: P224

Port P224 operation mode bit (Note 2)

1: A11/CS2# (Note 1)

P225MD

0: P225

Port P225 operation mode bit (Note 2)

1: A12/CS3# (Note 1)

6, 7

No function assigned. Fix to "0."

Note 1: Which function of the pin is used depends on how the P22 Peripheral Function Select Register is set.

Note 2: During processor mode, settings of this bit have no effect and the port functions as external bus interface signal pin (A11/CS2# or

A12/CS3#).

8.3 Input/Output Port Related Registers

123456

P220SMD P221SMD

P224SMD P225SMD

0000000

123456

P220MD

P221MD

P224MD

P225MD

0000000

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