M32CSLASH8B datasheet(79/406 Pages) RENESAS

79 / 406 page

Under development

M32C/8B Group

8. Bus

Preliminary specification

Specifications in this manual are tentative and subject to change.

REJ09B0450-0050 Rev.0.50 Oct 31, 2008

Page 62 of 385

Figure 8.12

PWCR0 Register

b7 b6 b5 b4

Page Mode Wait Control Register 0

Bit Symbol

Bit Name

PWCR000

NOTE:

1. When page mode control is enabled, set the EWCRi6 bit in the EWCRi register (i = 0 to 3) to 0 (add no recovery

cycle when accessing external space i ).

Function

External space 0

subsequent access

wait select bits

PWCR001

PWCR002

b2 b1 b0

0 0 1: 1

φ + 1 φ

0 1 0: 1

φ + 2 φ

0 1 1: 1

φ + 3 φ

1 0 0: 1

φ + 4 φ

Do not set to values other than the above.

PWCR003

PWCR005

PWCR004

PWCR006

PWCR007

External space 0

page mode control enable bit

0: Page mode control disabled

1: Page mode control enabled(1)

External space 1

subsequent access

wait select bits

b6 b5 b4

0 0 1: 1

φ + 1 φ

0 1 0: 1

φ + 2 φ

0 1 1: 1

φ + 3 φ

1 0 0: 1

φ + 4 φ

Do not set to values other than the above.

External space 1

page mode control enable bit

0: Page mode control disabled

1: Page mode control enabled(1)

Symbol

PWCR0

Address

004Ch

After Reset

0001 0001b

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