HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 257
HD6417660
Manufacturer Part Number
HD6417660
Description
Renesas 32-Bit RISC Microcomputer
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.HD6417660.pdf
(846 pages)
- Current page: 257 of 846
- Download datasheet (6Mb)
BSC functional block diagram is shown in figure 9.1.
A23 to A0
D15 to D0
BS
RD
RAS
DQM1
CS0
, RD/WR ,
, WE1 , WE0
CMNCR
CSnWCR
RWTCNT
CSnBCR
SDCR
RTCSR
RTCNT
RTCOR
, CAS , CKE ,
, CS3 , CS4
controller
Interrupt
, DQM0
Legend
BOOT_E
REFOUT
,
BACK
BREQ
WAIT
MD5
: Common control register
: CSn space wait control register (n = 0, 3, 4)
: Reset wait counter
: CSn space bus control register (n = 0, 3, 4)
: SDRAM control register
: Refresh timer control/status register
: Refresh timer counter
: Refresh time constant register
Figure 9.1 BSC Functional Block Diagram
area control circuit
External memory
Bus right
controller
controller
controller
controller
controller
Refresh
Memory
Area
Wait
.
.
.
.
.
.
.
.
.
Comparator
CS4WCR
RWTCNT
CS0WCR
CS0BCR
CS4BCR
CMNCR
RTCSR
RTCOR
RTCNT
SDCR
.
.
.
.
.
.
BSC
Rev. 1.00, 02/04, page 219 of 804
Internal master
Internal slave
module
module
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