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Section 1 Overview
Rev. 4.00 Sep. 14, 2005 Page 20 of 828
REJ09B0023-0400
Classification Symbol
I/O Name
Function
Bus control
RD/
WR
O
Read/write
Read/write
signal
BS
O
Bus start
Bus-cycle start
WE3
/DQMUU/
AH
O
Byte specification Indicates that bits 31 to 24 of the
data in the external memory or
device are being written.
Selects D31 to D24 when SDRAM is
connected.
Address hold signal for address/data
multiplexed I/O.
WE2
/DQMUL
O
Byte specification Indicates that bits 23 to 16 of the
data in the external memory or
device are being written.
Selects D23 to D16 when SDRAM is
connected.
WE1
/DQMLU O Byte
specification Indicates that bits 15 to 8 of the data
in the external memory or device are
being written.
Selects D15 to D8 when SDRAM is
connected.
WE0
/DQMLL O Byte
specification Indicates that bits 7 to 0 of the data
in the external memory or device are
being written.
Selects D7 to D0 when SDRAM is
connected.
RASU
,
RASL
O
RAS
Connected to the
RAS
pin when the
SDRAM is connected.
CASU
,
CASL
O
CAS
Connected to the
CAS
pin when the
SDRAM is connected.
CKE
O
CK enable
Connected to the CKE pin when the
SDRAM is connected.
FRAME
O
FRAME signal
Connects the
FRAME
signal for the
burst MPX-IO interface.
WAIT
I
Wait
When active, inserts a wait cycle into
the bus cycles during access to the
external space.
Содержание HD6417641
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Страница 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
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Страница 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Страница 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Страница 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Страница 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Страница 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Страница 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Страница 500: ...Section 13 Direct Memory Access Controller DMAC Rev 4 00 Sep 14 2005 Page 450 of 982 REJ09B0023 0400...
Страница 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Страница 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Страница 734: ...Section 18 Multi Function Timer Pulse Unit MTU Rev 4 00 Sep 14 2005 Page 684 of 982 REJ09B0023 0400...
Страница 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Страница 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Страница 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Страница 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Страница 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Страница 1032: ...Rev 4 00 Sep 14 2005 Page 982 of 982 REJ09B0023 0400 X X Y data addressing 52 X Y memory 193...
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Страница 1036: ...SH7641 Hardware Manual...