HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 360

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

Section 12 Bus State Controller (BSC)
Rev. 4.00 Sep. 14, 2005 Page 310 of 982
REJ09B0023-0400
Bit
19
18
17
16
Bit Name
MPXMD

BW1
BW0
Initial
Value
0
0
1
0
R/W
R/W
R
R/W
R/W
Description
Burst MPX-IO Interface Mode Specification
Specify the access mode in 16-byte access
0: One 4-burst access by 16-byte transfer
1: Two 2-bursts accesses by quad word (8-byte)
Transfer size when MPXMD = 0
D31 D30
0
0
0
0
1
1
1
Transfer size when MPXMD = 1
D31 D30
0
0
0
0
1
Reserved
This bit is always read as 0. The write value should
always be 0.
Number of Burst Wait Cycles
Specify the number of wait cycles to be inserted at the
2nd and the subsequent access cycles in burst access
00: No cycle
01: 1 cycle
10: 2 cycles
11: 3 cycles
transfer
0
0
1
1
0
0
1
0
0
1
1
0
D29
0
1
0
1
0
1
0
D29
0
1
0
1
0
: Transfer Size
: Byte (1 byte)
: Word (2 byte)
: Longword (4 bytes)
: Reserved (quad word) (8 bytes)
: 16 bytes
: Reserved (32 bytes)
: Reserved (64 bytes)
: Transfer Size
: Byte (1 byte)
: Word (2 byte)
: Longword (4 bytes)
: Quad word (8 bytes)
: Reserved (32 bytes)