HD6417618 RENESAS [Renesas Technology Corp], HD6417618 Datasheet - Page 139

• Manufacturer Part Number: HD6417618
• Description: 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

The block diagram of the BSC is shown in figure 7.1.
A25 to A0, D15 to D0,
BS, RD/WR, RD,
WE1 (BE1, DQMLU, WE),
WE0 (BE0, DQMLL),
ICIOWR, ICIORD,
RAS, CAS,
CKE, CE2A, CE2B
CS0, CS3, CS4,
CS5B (CE1A),
CS6B (CE1B)
[Legend]
CMNCR:
CSnWCR: CSn space wait control register (n = 0, 3, 4, 5B, 6B)
RWTCNT: Reset wait counter
CSnBCR: CSn space bus control register (n = 0, 3, 4, 5B, 6B)
SDCR:
RTCSR:
RTCNT:
RTCOR:
IOIS16
WAIT
MD5
Common control register
SDRAM control register
Refresh timer control/status register
Refresh timer counter
Refresh time constant register
mastership
controller
controller
controller
controller
controller
Refresh
Figure 7.1 Block Diagram of BSC
Memory
Area
Wait
Bus
CS6BWCR
CS6BBCR
Comparator
RWTCNT
CS0WCR
CS0BCR
CMNCR
RTCOR
RTCSR
RTCNT
SDCR
BSC
Rev. 6.00 Jun. 12, 2007 Page 107 of 610
Section 7 Bus State Controller (BSC)
REJ09B0131-0600
Internal master
Internal slave
module
module