HD6417660 RENESAS [Renesas Technology Corp], HD6417660 Datasheet - Page 275

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

Burst ROM:
• CS0WCR
Bit
31 to 18 
17
16
15 to 11 
10
9
8
7
Bit Name
BW1
BW0
W3
W2
W1
W0
Initial
Value
All 0
0
0
All 0
1
0
1
0
R/W Description
R
R/W
R/W
R
R/W
R/W
R/W
R/W
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.
Number of Burst Wait Cycles
Specify the number of wait cycles to be inserted between the
second or later access cycles in burst access.
00: 0 cycles
01: 1 cycle
10: 2 cycles
11: 3 cycles
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.
Number of Access Wait Cycles
Specify the number of wait cycles to be inserted in the write
cycle and the first read cycle.
0000: 0 cycles
0001: 1 cycle
0010: 2 cycles
0011: 3 cycles
0100: 4 cycles
0101: 5 cycles
0110: 6 cycles
0111: 8 cycles
1000: 10 cycles
1001: 12 cycles
1010: 14 cycles
1011: 18 cycles
1100: 24 cycles
1101: Setting prohibited
1110: Setting prohibited
1111: Setting prohibited
Rev. 1.00, 02/04, page 237 of 804