6529 Datasheet | Commodore

,..,modore ~ aamlcanduct;ar graup [t!][K!A]@~ SINGLE-PORT INTERFACE 6529 SINGLE PORT INTERFACE DESCRIPTION The 6529 is a static microprocessor patible, 8-bit I/O Port with passive output pull-up devices. Data is written to the port when CS and RNI/ are low. Data is read from the port when CS is low and RNI/ is high. The passive output pull-ups allow a single bit to act as either an input or an output without I/O mode switching. This device is provided with special circuitry to provide power-on reset. Under normal fast poweron conditions the outputs will initialize in the input high impedance state. With very slow or noisy power-up, there is some possibility the device...