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Section 12 Bus State Controller (BSC)
Rev. 4.00 Sep. 14, 2005 Page 271 of 982
REJ09B0023-0400
BSC functional block diagram is shown in figure 12.1.
CMNCR
CS0WCR
CS6BWCR
RWTCNT
CS0BCR
CS6BBCR
SDCR
RTCSR
RTCNT
RTCOR
Comparator
Bus
mastership
controller
Wait
controller
Area
controller
Inter
nal b
us
Memory
controller
Refresh
controller
[Legend]
Module
bu
s
BSC
CS0
,
CS2
,
CS3
,
CS4
,
CS5A
,
CS5B
,
CS6A
,
CS6B
WAIT
MD3
A25 to A0,
D31 to D0
BACK
BREQ
BS
, RD/
WR
,
RD
,
WE3
to
WE0
,
RASU
,
RASL
,
CASU
,
CASL
CKE, DQMxx,
AH
,
FRAME
CMNCR:
CSnWCR:
RWTCNT:
CSnBCR:
SDCR:
RTCSR:
RTCNT:
RTCOR:
Common control register
CSn space wait control register (n = 0, 2, 3, 4, 5A, 5B, 6A, 6B)
Reset wait counter
CSn space bus control register (n = 0, 2, 3, 4, 5A, 5B, 6A, 6B)
SDRAM control register
Refresh timer control/status register
Refresh timer counter
Refresh time constant register
.
. .
.
. .
. . .
. . .
. .
.
Figure 12.1 BSC Functional Block Diagram
Summary of Contents for HD6417641
Page 2: ...Rev 4 00 Sep 14 2005 Page ii of l...
Page 7: ...Rev 4 00 Sep 14 2005 Page vii of l...
Page 11: ...Rev 4 00 Sep 14 2005 Page xi of l USB Universal serial bus WDT Watch dog timer...
Page 12: ...Rev 4 00 Sep 14 2005 Page xii of l...
Page 28: ...Rev 4 00 Sep 14 2005 Page xxviii of l...
Page 204: ...Section 4 Clock Pulse Generator CPG Rev 4 00 Sep 14 2005 Page 154 of 982 REJ09B0023 0400...
Page 212: ...Section 5 Watchdog Timer WDT Rev 4 00 Sep 14 2005 Page 162 of 982 REJ09B0023 0400...
Page 228: ...Section 6 Power Down Modes Rev 4 00 Sep 14 2005 Page 178 of 982 REJ09B0023 0400...
Page 246: ...Section 8 X Y Memory Rev 4 00 Sep 14 2005 Page 196 of 982 REJ09B0023 0400...
Page 318: ...Section 11 User Break Controller UBC Rev 4 00 Sep 14 2005 Page 268 of 982 REJ09B0023 0400...
Page 454: ...Section 12 Bus State Controller BSC Rev 4 00 Sep 14 2005 Page 404 of 982 REJ09B0023 0400...
Page 504: ...Section 14 U Memory Rev 4 00 Sep 14 2005 Page 454 of 982 REJ09B0023 0400...
Page 566: ...Section 17 Compare Match Timer CMT Rev 4 00 Sep 14 2005 Page 516 of 982 REJ09B0023 0400...
Page 868: ...Section 21 A D Converter Rev 4 00 Sep 14 2005 Page 818 of 982 REJ09B0023 0400...
Page 914: ...Section 23 I O Ports Rev 4 00 Sep 14 2005 Page 864 of 982 REJ09B0023 0400...
Page 956: ...Section 24 List of Registers Rev 4 00 Sep 14 2005 Page 906 of 982 REJ09B0023 0400...
Page 1016: ...Section 25 Electrical Characteristics Rev 4 00 Sep 14 2005 Page 966 of 982 REJ09B0023 0400...
Page 1024: ...Appendix Rev 4 00 Sep 14 2005 Page 974 of 982 REJ09B0023 0400...
Page 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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