HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 268

• Manufacturer Part Number: HD6417660
• Description: Renesas 32-Bit RISC Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

Notes: 1. In actual operation, same idle cycles might be inserted by factors other than the
Rev. 1.00, 02/04, page 230 of 804
Bit
10
9
8 to 0
2. If an unappropriated memory is specified to be connected to a space, correct operation
3. The initial data bus sizes of other than area 0 after a reset cannot be set. Therefore, the
Bit Name
BSZ1
BSZ0

specification of this bit.
cannot be guaranteed.
data bus sizes should be set 8 or 16 bits before the areas are accessed.
1
0/1
All 0
Initial
Value
R/W
R/W
R
R/W
Description
Data Bus Size*
Specify the data bus sizes of spaces.
The data bus sizes of areas 3 and 4 are shown below.
00: Setting prohibited
01: 8-bit size
10: 16-bit size
11: Setting prohibited
Note:
Reserved
These bits are always read as 0. The write value should
always be 0. If 1 is written to these bits, correct operation
cannot be guaranteed.
The initial values of CS0BCR and other CSnBCR
are 10 and 11, respectively. The valid value should
be set.
The data bus width of the area 0 is fixed 16 bits.
Other settings are ignored.
3