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ZX Interface 1: Difference between revisions
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* TX Data is the value '''received''' by the serial port. | * ''TX Data'' is the value '''received''' by the serial port. | ||
* Net Input is the value read from the Sinclair Network port. | * ''Net Input'' is the value read from the Sinclair Network port. | ||
* Bit 0 of port 0x7f is output to the serial port if ''Comms Data'' is '''set''', or to the network port if ''Comms Data'' is '''reset'''. | * Bit 0 of port 0x7f is output to the serial port if ''Comms Data'' is '''set''', or to the network port if ''Comms Data'' is '''reset'''. | ||
* DTR signals that the remote station wishes to send data, CTS signals that the Spectrum wishes to send data | * ''DTR'' signals that the remote station wishes to send data, ''CTS'' signals that the Spectrum wishes to send data | ||
* Wait is used for network synchronisation. | * Wait is used for network synchronisation. | ||
* When Erase is '''reset''' the tape is erased and data is written, when '''set''' data is read. | * When ''Erase'' is '''reset''' the tape is erased and data is written, when '''set''' data is read. | ||
* R/W instructs the microdrive to read or write. When R/W is '''set''' the microdrive runs, when '''reset''' it stops | * ''R/W'' instructs the microdrive to read or write. When ''R/W'' is '''set''' the microdrive runs, when '''reset''' it stops | ||
* Comms Data is the value to be shifted into the microdrive select flip-flop chain. | * ''Comms Data'' is the value to be shifted into the microdrive select flip-flop chain. | ||
* Comms Clock shifts the microdrive select bit along the chain. | * ''Comms Clock'' shifts the microdrive select bit along the chain. | ||
* Write Protect is raised when a writeable cartridge is present in the selected microdrive. | * ''Write Protect'' is raised when a writeable cartridge is present in the selected microdrive. | ||
* Gap and Sync are used to locate the correct block of data on the microdrive. | * ''Gap'' and ''Sync'' are used to locate the correct block of data on the microdrive. | ||
