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ZX80/81 edge connector

91 bytes added, 16:28, 17 November 2017
Chip Select
====Chip Select====
{{overline|RAMCS′}} and {{overline|ROMCS′}} are connected directly to the ROM and RAM chip select inputs. They are connected to the computer's logic via series resistors so that their value can be overridden by an external peripheral which is denoted by the prime symbol.
{{overline|ROMCS′}} is only present on the ZX81. on the ZX80 this pin is not connected.
====CPU Clock====

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