SH7709S Datasheet, PDF(272/807 Page) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

SH7709S Datasheet, PDF (272/807 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series

◁

10.1.4 Register Configuration

The BSC has 21 registers (table 10.2). Synchronous DRAM also has a built-in synchronous

DRAM mode register. These registers control direct connection interfaces to memory, wait states,

and refreshes devices.

Table 10.2 BSC Registers

Name

Abbr.

R/W Initial Value* Address

Bus Width

Bus control register 1

BCR1

R/W H'0000

H'FFFFFF60 16

Bus control register 2

BCR2

R/W H'3FF0

H'FFFFFF62 16

Wait state control register 1

WCR1

R/W H'3FF3

H'FFFFFF64 16

Wait state control register 2

WCR2

R/W H'FFFF

H'FFFFFF66 16

Individual memory control

register

MCR

R/W H'0000

H'FFFFFF68 16

PCMCIA control register

PCR

R/W H'0000

H'FFFFFF6C 16

Refresh timer control/status

register

RTCSR R/W H'0000

H'FFFFFF6E 16

Refresh timer counter

RTCNT R/W H'0000

H'FFFFFF70 16

Refresh time constant register RTCOR R/W H'0000

H'FFFFFF72 16

Refresh count register

RFCR

R/W H'0000

H'FFFFFF74 16

Synchronous DRAM mode

register, area 2

SDMR

W

â

H'FFFFD000â 8

H'FFFFDFFF

Synchronous DRAM mode

register, area 3

H'FFFFE000â

H'FFFFEFFF

MCS0 control register

MCSCR0 R/W H'0000

H'FFFFFF50 16

MCS1 control register

MCSCR1 R/W H'0000

H'FFFFFF52 16

MCS2 control register

MCSCR2 R/W H'0000

H'FFFFFF54 16

MCS3 control register

MCSCR3 R/W H'0000

H'FFFFFF56 16

MCS4 control register

MCSCR4 R/W H'0000

H'FFFFFF58 16

MCS5 control register

MCSCR5 R/W H'0000

H'FFFFFF5A 16

MCS6 control register

MCSCR6 R/W H'0000

H'FFFFFF5C 16

MCS7 control register

MCSCR7 R/W H'0000

H'FFFFFF5E 16

Notes: For details, see section 10.2.7, Synchronous DRAM Mode Register (SDMR).

* Initialized by a power-on reset.

Rev. 5.00, 09/03, page 228 of 760

▷