H83069RF datasheet(142/1003 Pages) RENESAS

142 / 1003 page

Rev. 5.0, 09/04, page 120 of 978

Bits 5 and 4—Area 2 Wait Control 1 and 0 (W21, W20): These bits select the number of

program wait states when area 2 in external space is accessed while the AST2 bit in ASTCR is set

to 1.

Bit 5

W21

Bit 4

W20

Description

Program wait not inserted when external space area 2 is accessed

1 program wait state inserted when external space area 2 is accessed

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

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

(Initial value)

Bits 3 and 2—Area 1 Wait Control 1 and 0 (W11, W10): These bits select the number of

program wait states when area 1 in external space is accessed while the AST1 bit in ASTCR is set

to 1.

Bit 3

W11

Bit 2

W10

Description

Program wait not inserted when external space area 1 is accessed

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

2 program wait states inserted when external space area 1 is accessed

3 program wait states inserted when external space area 1 is accessed

(Initial value)

Bits 1 and 0—Area 0 Wait Control 1 and 0 (W01, W00): These bits select the number of

program wait states when area 0 in external space is accessed while the AST0 bit in ASTCR is set

to 1.

Bit 1

W01

Bit 0

W00

Description

Program wait not inserted when external space area 0 is accessed

1 program wait state inserted when external space area 0 is accessed

2 program wait states inserted when external space area 0 is accessed

3 program wait states inserted when external space area 0 is accessed

(Initial value)

H83069RF Datasheet(PDF) 142 Page - Renesas Technology Corp