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[/] [t48/] [tags/] [rel_0_6_beta/] [rtl/] - Rev 145

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145 remove PROG and end of XTAL2, see comment for details arniml 7187d 15h /t48/tags/rel_0_6_beta/rtl/
144 delay db_dir_o by one machine cycle
this fixes the timing relation between BUS data and WR'
arniml 7187d 15h /t48/tags/rel_0_6_beta/rtl/
143 Fix bug report:
"RD' and WR' not asserted for INS A, BUS and OUTL BUS, A"
rd is asserted for INS A, BUS
wr is asserted for OUTL BUS, A
P1, P2 and BUS are written in first instruction cycle
arniml 7187d 16h /t48/tags/rel_0_6_beta/rtl/
142 deassert rd_q, wr_q and prog_q at end of XTAL3 arniml 7187d 16h /t48/tags/rel_0_6_beta/rtl/
138 Fix for:
P1 constantly in push-pull mode in t8048
arniml 7189d 02h /t48/tags/rel_0_6_beta/rtl/
134 Fix bug report:
"PSENn Timing"
PSEN is now only asserted for the second cycle if explicitely
requested by assert_psen_s.
The previous implementation asserted PSEN together with RD or WR.
arniml 7231d 11h /t48/tags/rel_0_6_beta/rtl/
129 cleanup copyright notice arniml 7293d 18h /t48/tags/rel_0_6_beta/rtl/
128 counter_q is not cleared during reset
this would match all different descriptions of the Counter as
a) if the software assumes that the Counter is modified during reset, it
will initialize the Counter anyhow
b) the special case 'Counter not modified during reset' is covered
arniml 7300d 22h /t48/tags/rel_0_6_beta/rtl/
120 Fix bug report:
"Program Memory bank can be switched during interrupt"
int module emits int_in_progress signal that is used inside the decoder
to hold mb low for JMP and CALL during interrupts
arniml 7304d 14h /t48/tags/rel_0_6_beta/rtl/
119 add int_in_progress_o to entity of int module arniml 7304d 14h /t48/tags/rel_0_6_beta/rtl/
108 Fix for:
External Program Memory ignored when EA = 0
arniml 7345d 13h /t48/tags/rel_0_6_beta/rtl/
107 tie EA to '1' arniml 7345d 13h /t48/tags/rel_0_6_beta/rtl/
106 clean-up use of ea_i arniml 7345d 13h /t48/tags/rel_0_6_beta/rtl/
101 assert p2_read_p2_o when expander port is read arniml 7348d 21h /t48/tags/rel_0_6_beta/rtl/
100 reorder data_o generation arniml 7348d 21h /t48/tags/rel_0_6_beta/rtl/
98 Fix bug "ANL and ORL to P1/P2 read port status instead of port output register" arniml 7348d 21h /t48/tags/rel_0_6_beta/rtl/
92 work around bug in Quartus II 4.0 arniml 7349d 20h /t48/tags/rel_0_6_beta/rtl/
91 fix edge detector bug for counter arniml 7349d 20h /t48/tags/rel_0_6_beta/rtl/
86 update notice about expander port instructions arniml 7364d 23h /t48/tags/rel_0_6_beta/rtl/
78 adjust external timing of BUS arniml 7370d 19h /t48/tags/rel_0_6_beta/rtl/

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