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Altera_Forum
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20 years ago

IORD_XDIRECT AND IOWR_XDIRECT?

Hello: Now I have some problems about the I/O Marco IORD_XDIRECT AND IOWR_XDIRECT.For example: I have a 16 bits slave periphery and the BEn0 ,BEn1 are both always low(means that th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Look at Table 3.5 of the Processor Reference Handbook

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

ldbio

ldbuio

stbio

ldhio

ldhuio

sthio

These operations load/store byte and half-word data from/to peripherals without caching or

buffering.[/b]

--- Quote End ---