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ubb-vga/web/index.html: correction - it's the response we fake, not the "busy"
"Busy" is actually another signal, on DAT0, and sent betweeen blocks. We don't fake that one (so far), although the mechanism would be similar.
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@ -49,7 +49,7 @@ ten resistors, and the VGA cable:
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Each of the three analog color channels uses three resistors for lowering
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the 3.3 V logic voltage to the 0.7 V analog VGA level and for mixing in the
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luminance (Y) signal. The tenth resistor pulls down the HSYNC/CMD
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line, to fake the "not busy" signal the MMC controller expects to receive
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line, to fake the response the MMC controller expects to receive
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from a MMC device when starting a block write.
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