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Commit Graph

4 Commits

Author SHA1 Message Date
Gyorgy Szombathelyi
c5b061fbcf [C16] More straightforward writing of RAS-to-CAS timing 2019-05-07 14:40:49 +02:00
Gyorgy Szombathelyi
53ab2c9900 [C16] SDRAM addressing fixes
- 32 MB = 24 bits word address
- C16 uses the low byte of the address for RAS, make it similar in
  the SDRAM controller, so SDRAM command can be started sooner
- This means it's OK to delay writing to c16_a_hi, no need for
  async clock
- Use word addressing for TAP
2019-05-02 21:19:46 +02:00
Gyorgy Szombathelyi
89ce6c0227 [C16] Reduce SDRAM cycle length
- allow to use Fast Input/Output Registers for SDRAM
- extra cycle can be used for TAP upload/playback
2019-04-30 16:33:16 +02:00
Till Harbaum
0f8acdc06a Add c16/c264 source 2016-07-29 11:14:39 +02:00