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ManualsBrandsRENESAS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 64 (10x10) 16-Bit 24 MHz I/O number 37
171172173174175176177178179180
Section 6 Bus Controller
Rev.7.00 Dec. 24, 2008 Page 121 of 698
REJ09B0074-0700
Bit Bit Name Initial Value R/W Description
3
2
W51
W50
1
1
R/W
R/W
Area 5 Wait Control 1 and 0
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.
00: Program wait not inserted when external space area
5 is accessed
01: 1 program wait state inserted when external space
area 5 is accessed
10: 2 program wait states inserted when external space
area 5 is accessed
11: 3 program wait states inserted when external space
area 5 is accessed
1
0
W41
W40
1
1
R/W
R/W
Area 4 Wait Control 1 and 0
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.
00: Program wait not inserted when external space area
4 is accessed
01: 1 program wait state inserted when external space
area 4 is accessed
10: 2 program wait states inserted when external space
area 4 is accessed
11: 3 program wait states inserted when external space
area 4 is accessed