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HD64F2149YV Folha de dados(PDF) 993 Page - Renesas Technology Corp

Nome de Peças HD64F2149YV
Descrição Electrónicos  Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series
PDF  1075 Pages
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Fabricante Electrônico  RENESAS [Renesas Technology Corp]
Página de início  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD64F2149YV Folha de dados(HTML) 993 Page - Renesas Technology Corp

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Appendix B Internal I/O Registers
Rev. 3.00 Jan 18, 2006 page 965 of 1044
REJ09B0280-0300
WSCR—Wait State Control Register
H'FFC7
Bus Controller
7
RAMS
0
R/W
6
RAM0
0
R/W
5
ABW
1
R/W
4
AST
1
R/W
3
WMS1
0
R/W
0
WC0
1
R/W
2
WMS0
0
R/W
1
WC1
1
R/W
Bit
Initial value
Read/Write
Reserved bits
Wait count 1 and 0
0
No program wait
states are inserted
0
1 program wait state
is inserted in external
memory space
accesses
1
1
2 program wait states
are inserted in external
memory space
accesses
0
3 program wait states
are inserted in external
memory space
accesses
1
Wait mode select 1 and 0
0
Program wait mode
0
Wait disabled mode
1
1
Pin wait mode
0
Pin auto-wait mode
1
Access state control
0
External memory space is designated as 2-state
access space
Wait state insertion in external memory space
accesses is disabled
1
External memory space is designated as 3-state
access space
Wait state insertion in external memory space
accesses is enabled
Bus width control
0
External memory space designated as 16-bit access space
1
External memory space designated as 8-bit access space



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