HD6417706 RENESAS [Renesas Technology Corp], HD6417706 Datasheet - Page 217

• Manufacturer Part Number: HD6417706
• Description: Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Bit
8
7
6
5
4
3
2
Bit Name
A5BST1
A5BST0
A6BST1
A6BST0
DRAMTP2
DRAMTP1
DRAMTP0
Initial Value R/W
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Area 5 Burst Enable
Specify whether to use burst ROM and PCMCIA burst
mode in physical space area 5. When burst ROM and
PCMCIA burst mode are used, set the number of burst
transfers.
00: Access area 5 as ordinary memory
01: Burst access of area 5 (4 consecutive accesses).
10: Burst access of area 5 (8 consecutive accesses).
11: Burst access of area 5 (16 consecutive accesses).
Area 6 Burst Enable
Specify whether to use burst ROM and PCMCIA burst
mode in physical space area 6. When burst ROM and
PCMCIA burst mode are used, set the number of burst
transfers.
00: Access area 6 as ordinary memory
01: Burst access of area 6 (4 consecutive accesses).
10: Burst access of area 6 (8 consecutive accesses).
11: Burst access of area 6 (16 consecutive accesses).
Area 2, Area 3 Memory Type
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.
000: Areas 2 and 3 are ordinary memory
001: Reserved (Setting prohibited)
010: Area 2: ordinary memory; area 3: synchronous
011: Areas 2 and 3 are synchronous DRAM*
100: Reserved (Setting prohibited)
101: Reserved (Setting prohibited)
110: Reserved (Setting prohibited)
111: Reserved (Setting prohibited)
Can be used when bus width is 8, 16, or 32.
Can be used when bus width is 8 or 16.
Can be used only when bus width is 8.
Can be used when bus width is 8, 16, or 32.
Can be used when bus width is 8 or 16.
Can be used only when bus width is 8.
DRAM*
3
Rev. 4.00, 03/04, page 171 of 660
2
*
3