SH7261 datasheet(238/1348 Pages) RENESAS

Part #	SH7261

Description	32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

PDF	1348 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

Direct Link	http://www.renesas.com

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238 / 1348 page

Section 9 Bus State Controller (BSC)

Rev. 2.00 Sep. 07, 2007 Page 206 of 1312

REJ09B0320-0200

Area

controller

(CSC)

Access

controller

SDRAM

controller

(SDRAMC)

CS6 to CS0

WR3 to WR0

WAIT

A27 to A0

BC3 to BC0

D31 to D0

SDCS1, SDCS0

SDRAS, SDCAS

SDWE, SDCKE

DQM3 to DQM0

CSMODn

CS1WCNTn

CS2WCNTn

SDRFCNT0/1

SDIR0/1

SDmADR

SDmTR

SDmMOD

[Legend]

Note: n = 0 to 6, m = 0 and 1

CSMODn:

CSn mode register

CS1WCNTn:

CSn wait control register 1

CS2WCNTn:

CSn wait control register 2

CSnCNT:

CSn control register

CSnREC:

CSn recovery cycle setting register

SDCmCNT:

SDRAMCm control register

SDRFCNT0/1: SDRAM refresh control register 0/1

SDIR0/1:

SDRAM initialization register 0/1

SDmADR:

SDRAMm address register

SDmTR:

SDRAMm timing register

SDmMOD:

SDRAMm mode register

SDPWDCNT:

SDRAM power-down control register

SDDPWDCNT: SDRAM deep-power-down control register

SDSTR:

SDRAM status register

SDCKSCNT:

SDRAM clock stop control signal setting register

SDPWDCNT

SDDPWDCNT

SDSTR

SDCKSCNT

CSnCNT

CSnREC

SDCmCNT

Figure 9.1 Block Diagram of BSC

SH7261 Datasheet(PDF) 238 Page - Renesas Technology Corp

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