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[/] [open8_urisc/] [trunk/] [VHDL/] [o8_sdlc_if.vhd] - Rev 228

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224 Finished new Open8 bus record, which now includes the clock, reset and a microsecond tick. The CPU now accepts a clock and pll_locked signal, which it uses to generate the system reset in the bus record. It also contains a simple microsecond counter to feed the usec_tick in the record. This logic was removed from the real time clock and system timer entities, which now use the global version. Bus connections should be dramatically simplified, as only the read logic and interrupts are still run as separate signals. jshamlet 1700d 17h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
223 Added an OPEN8_BUS_TYPE record to simplify connection to Open8 modules. The CPU now passes and Open8_Bus out, which supplies the bus address, write enable, write data, and read enable. Read data and interrupts are still handled as separate signals, since they are muxed/connected at the next level up. jshamlet 1701d 10h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
206 Merged interrupt logic with other clocked process. jshamlet 1713d 04h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
205 More code and comment cleanup for the new SDLC engine jshamlet 1713d 04h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
204 Fixed more incorrect comments jshamlet 1713d 04h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
202 Fixed receiver bug that caused false flag detection,
Split the large sdlc_serial_ctrl entity into sub-entities to make debugging easier.		 jshamlet 1713d 11h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
201 Fixed comments regarding RX Checksum location jshamlet 1715d 08h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
200 Renamed dual-port buffer to match other entities. jshamlet 1715d 08h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
199 Added monitor ram for debugging and fixed issue with dual-port read path. jshamlet 1715d 09h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
198 Removed debugging memory jshamlet 1715d 17h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
196 Modified the update logic to allow direct writes to offset 0xFE for refreshing the clock status. This way, any write to the clock status register will immediately be undone. (Writing 0x00 to offset 0xFF is once-more ignored) jshamlet 1715d 18h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd
192 Added SDLC packet engine jshamlet 1716d 13h /open8_urisc/trunk/VHDL/o8_sdlc_if.vhd

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