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Known bugs of the T48 uController core
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Known bugs of the T48 uController core
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======================================
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======================================
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Version: $Date: 2004-10-24 09:13:06 $
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Version: $Date: 2004-10-25 21:37:36 $
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Release 0.4 BETA
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Release 0.4 BETA
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----------------
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----------------
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*******************************************************************************
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*******************************************************************************
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RD' and WR' not asserted for INS A, BUS and OUTL BUS, A
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The control signals RD' and WR' are not asserted when the instructions INS A,
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BUS and OUTL BUS, A are executed. The BUS is read or written but the control
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signals are missing.
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Fixed in:
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decoder.vhd 1.16
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Fix will be included in next release.
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*******************************************************************************
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P1 constantly in push-pull mode in t8048
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P1 constantly in push-pull mode in t8048
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Port P1 is constantly driven by an active push-pull driver instead of an
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Port P1 is constantly driven by an active push-pull driver instead of an
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open-collector driver type. This inhibits using any bit of P1 in input
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open-collector driver type. This inhibits using any bit of P1 in input
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direction.
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direction.
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Release 0.3 BETA
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Release 0.3 BETA
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----------------
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*******************************************************************************
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*******************************************************************************
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RD' and WR' not asserted for INS A, BUS and OUTL BUS, A
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See above.
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*******************************************************************************
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P1 constantly in push-pull mode in t8048
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P1 constantly in push-pull mode in t8048
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See above.
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See above.
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*******************************************************************************
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*******************************************************************************
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Release 0.2 BETA
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Release 0.2 BETA
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----------------
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----------------
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*******************************************************************************
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*******************************************************************************
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RD' and WR' not asserted for INS A, BUS and OUTL BUS, A
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See above.
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*******************************************************************************
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P1 constantly in push-pull mode in t8048
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P1 constantly in push-pull mode in t8048
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See above.
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See above.
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*******************************************************************************
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*******************************************************************************
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Release 0.1 BETA
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Release 0.1 BETA
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----------------
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*******************************************************************************
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*******************************************************************************
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RD' and WR' not asserted for INS A, BUS and OUTL BUS, A
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See above.
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*******************************************************************************
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PSENn Timing
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PSENn Timing
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See above.
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See above.
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*******************************************************************************
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*******************************************************************************
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