Index
Index-30 Élan™SC520 Microcontroller User’s Manual
DMA considerations, 11-11
initialization, 11-15
operation, 11-4
PCI considerations, 11-12
read cycles, 11-12
write cycles, 11-12
read buffer, 11-10
disabled, 11-10
enabled, 11-10
registers, 11-4
SDRAM bandwidth improvements, 11-13
bus thrashing (figure), 11-14
software considerations, 11-13
system design, 11-3
shared signals (table), 11-4
write buffer, 11-5
disabled, 11-5
enabled, 11-5
read-merging, 11-8
read-merging example (figure), 11-9
watermark, 11-9
write-collapsing, 11-6
write-collapsing example (figure), 11-8
write-merging, 11-6
Write Buffer Master signals.
See
WBMSTR2–
WBMSTR0 signals.
Write-Protect Violation Interrupt Mapping (WPVMAP)
register
function, 15-5
Write-Protect Violation Status (WPVSTA) register
function, 4-2
usage, 4-19
write-protection, 3-12
WRST_ENB bit field, 19-4
WRTSEL bit field, 14-9
X
XTAL_FREQ bit field, 18-3
To Previous Page
Loading...