TC1796
System Units (Vol. 1 of 2)
LMB External Bus Unit
User’s Manual 13-89 V2.0, 2007-07
EBU, V2.0
DBA1 26 rw Disable Burst Address Wrapping
0
B
The EBU automatically re-aligns any non-
aligned burst access to a Type 1 device so that
data can be fetched from the device in a single
burst transaction.
1
B
The EBU always starts any burst access to a
Type 1 device at the address specified by the
LMB request. Any required address wrapping
must be automatically provided by the Burst
Flash device.
Note: Care must be taken with the use of this feature.
The address at which wrapping should take
place varies with the LMB burst access size,
while Burst Flash devices wrap at fixed address
boundaries. Therefore, it is not possible to
guarantee correct behavior for all LMB
accesses when this bit is 1.
0 [31:27],
[24:22]
0 Reserved
Read as 0; should be written with 0.
Field Bits Type Description
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