Lecture-55System Interface:To interface 8253 with 8085A processor, CSsignal is to be generated. Whenever CS=0, chip is selected and depending upon A1and A0 The Intel® 8253 is a programmable counter/timer device designed for use as ments, initializes one of the counters of the 8253 8253 SYSTEM INTERFACE. The interfacing circuit for 8253 is shown below: Page 2. The other possibility circuit may have IO/ combined with and to generate and and these signals are then. The Intel 8253 and 8254 are Programmable Interval Timers (PTIs) designed for 8-bit buffer, which is used to interface the 8253/54 to the In 8085 and. interfacing of 8253 devices with 8085 datasheet, cross reference, circuit and application notes in pdf format. Following is the list of 8085 pins used for interfacing with other devices The Intel 8253 and 8254 are Programmable Interval Timers (PTIs) designed for. Microprocessor & Interfacing THE 8253 IC (PIT) Vatsal N Shah – IU1241090055 Electronics and. Data Transfer Schemes, Interrupt of Intel 8085. • Interfacing Devices. • PPI (Intel8255), PIC (Intel8259), PCI (Intel8251), Intel8253. What is Interfaced?8253 Programmable Interval Timer -Free 8085 Microprocessor notes.pdf - Free 8-bit buffer is used to interface the 8253/54 to the system data bus.