HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 353

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

• CS4WCR
Bit
6
5 to 0
Bit
31 to 21
20
19, 18
Bit Name
WM

Bit Name

BEN

Initial
Value
0
All 0
Initial
Value
All 0
0
All 0
R/W
R/W
R
R/W
R
R/W
R
Description
External Wait Mask Specification
Specifies whether or not the external wait input is valid.
The specification by this bit is valid even when the
number of access wait cycle is 0.
0: External wait is valid
1: External wait is ignored
Reserved
These bits are always read as 0. The write value
should always be 0.
Description
Reserved
These bits are always read as 0. The write value
should always be 0.
Burst Enable Specification
Enables or disables 8-burst access for a 16-bit bus
width or 16- burst access for an 8-bit bus width during
16-byte access. If this bit is set to 0, 2-burst access is
performed four times when the bus width is 16 bits and
4-burst access is performed four times when the bus
width is 8 bits. To use a device that does not support
8-burst access or 16-burst access, set this bit to 1.
0: Enables 8-burst access for a 16-bit bus width and
1: Disables 8-burst access for a 16-bit bus width and
Reserved
These bits are always read as 0. The write value
should always be 0.
16-burst access for an 8-bit bus width.
16-burst access for an 8-bit bus width.
Rev. 4.00 Sep. 14, 2005 Page 303 of 982
Section 12 Bus State Controller (BSC)
REJ09B0023-0400