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C't 512 KB internal RAM expansion

No change in size, 20:10, 7 May 2010
/* PAL Source Code */
/D0 * D4 * /A15
IF (VCC) /A15S= /A14 * /A15 + ;bank bit3bit1
/D1 * /A15 +
/D4 * /D3 * /D2 * /D0 * /A15 +
A15 * A14 * D4 * /CPU * /MUX +
/A15 * A14 * D2 * /CPU * /MUX + ;bank bit2
/A15 * A14 * D1 D3 * /CPU * MUX ;bank bit1bit3
IF (GND) /MUX = /MUX ;dummy (do not output anything on this pin)
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