HD6432351 datasheet(163/1025 Pages) RENESAS

163 / 1025 page

Section 6 Bus Controller

Rev. 3.00 Sep 15, 2006 page 129 of 988

REJ09B0330-0300

Bits 5 and 4—Area 6 Wait Control 1 and 0 (W61, W60): These bits select the number of

program wait states when area 6 in external space is accessed while the AST6 bit in ASTCR is set

to 1.

Bit 5

W61

Bit 4

W60

Description

Program wait not inserted when external space area 6 is accessed

1 program wait state inserted when external space area 6 is accessed

2 program wait states inserted when external space area 6 is accessed

3 program wait states inserted when external space area 6 is accessed

(Initial value)

Bits 3 and 2—Area 5 Wait Control 1 and 0 (W51, W50): These bits select the number of

program wait states when area 5 in external space is accessed while the AST5 bit in ASTCR is set

to 1.

Bit 3

W51

Bit 2

W50

Description

Program wait not inserted when external space area 5 is accessed

1 program wait state inserted when external space area 5 is accessed

2 program wait states inserted when external space area 5 is accessed

3 program wait states inserted when external space area 5 is accessed

(Initial value)

Bits 1 and 0—Area 4 Wait Control 1 and 0 (W41, W40): These bits select the number of

program wait states when area 4 in external space is accessed while the AST4 bit in ASTCR is set

to 1.

Bit 1

W41

Bit 0

W40

Description

Program wait not inserted when external space area 4 is accessed

1 program wait state inserted when external space area 4 is accessed

2 program wait states inserted when external space area 4 is accessed

3 program wait states inserted when external space area 4 is accessed

(Initial value)

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