Section 7 Bus State Controller (BSC)
Rev. 2.00 Mar 09, 2006 page 332 of 906
REJ09B0292-0200
Tp
Tr
CKIO
A24–A16
A15–A1
RAS
CASn
RD/
WR
RD
D31–D0
RD/
WR
RD
D31–D0
DACKn
*
Read
Write
Tc1
Tc2
Note:
*
DACKn waveform when active-low is specified
Figure 7.45
RAS
RAS
RAS
RAS
Down Mode Different Row Access Timing
7.6.6
EDO Mode
In addition to the kind of DRAM in which data is output to the data bus only while the
CASn
signal is asserted in a data read cycle, there is another kind provided with an EDO mode in which,
while both
RAS
and
OE
are asserted, once the
CASn
signal is asserted data is output to the data
bus until
CASn
is next asserted, even though
CASn
is negated during this time.
Содержание SH7616
Страница 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Страница 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Страница 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...