Renesas SH7709S Manual Do Utilizador

Rev. 5.00, 09/03, page 238 of 760

0

0

Access area 6 accessed as ordinary memory

(initial value)

1

Burst access of area 6 (4 consecutive accesses). Can
be used when bus width is 8, 16, or 32.

1

0

Burst access of area 6 (8 consecutive accesses). Can
be used when bus width is 8 or 16. Should not be
specified when bus width is 32.

1

Burst access of area 6 (16 consecutive accesses). Can
be used only when bus width is 8. Should not be
specified when bus width is 16 or 32.

Bits 4 to 2—Area 2, Area 3 Memory Type (DRAMTP2, DRAMTP1, DRAMTP0): Designate
the types of memory connected to physical space areas 2 and 3. Ordinary memory, such as ROM,
SRAM, or flash ROM, can be directly connected. Synchronous DRAM can also be directly
connected.

0

0

0

Areas  2  and 3 are ordinary memory

(Initial value)

1

Reserved (Setting prohibited)

1

0

Area 2: ordinary memory; area 3:
synchronous DRAM

*

2

1

Areas 2 and 3 are synchronous DRAM

*

1

*

2

1

0

0

Reserved  (Setting  prohibited)

1

Reserved (Setting prohibited)

1

0

Reserved (Setting prohibited)

1

Reserved (Setting prohibited)

Notes: 1. When selecting this mode, set the same bus width for area 2 and area 3.

2. Do not access synchronous DRAM when clock ratio I

φ

:B

φ

 = 1:1

Bit 1—Area 5 Bus Type (A5PCM): Designates whether to access physical space area 5 as
PCMCIA space.

0

Physical space area 5 accessed as ordinary memory 

(Initial value)

1

Physical space area 5 accessed as PCMCIA space