The Intel 8255 processor with an 8-bit data bus is configured as shown in the figure below ( PORT_A as INPUT,PORT_B as OUTPUT, PORT_CL as INPUT and PORT_CH as OUTPUT). Find the control register for theindicated configuration.HINT: Assuming not using the BSR to control PCs PORTS, only considering using the I/O MODE with a digit of 1.A0Port_A7A1CONTROL WORD (BYTE)D7 D6 D5 D4 D3 D2 D1 DO? ? ? ? ? ? ? ?Control WordCSPort_BPort CL(PC3-PC0)1= INPUT; 0 = OUTPUTPort B1= INPUT; 0 = OUTPUT1 = /O Mode0 = BSR ModeRD7Mode Select00 - Mode 001 = Mode 1WRMode Select1x = Mode 20 = Mode 0Port_CLDOD1D2D3 DATAD4 BUSD5D61= mode 1Port A1 = INPUT0 = OUTPUTPort CH(PC7-PC4)1= INPUT; 0 = OUTPUT4Port_CHBSR AFFECTS ONLY THE 82557a. The control register is 00h.O b. The control register is 91h.OC. The control register is 19h.O d. The control register is 11h.INTEL 8253/8254/82553.

Solution:-- 1)The given question is an type of the multiple choice question as it has been…

The Intel 8255 processor with an 8-bit data bus is configured as shown in the figure below ( PORT_A as INPUT, PORT_B as OUTPUT, PORT_CL as INPUT and PORT_CH as OUTPUT). Find the control register for the indicated configuration. HINT: Assuming not using the BSR to control PCs PORTS, only considering using the I/O MODE with a digit of 1. A0 Port_A 7 A1 CONTROL WORD (BYTE) D7 D6 D5 D4 D3 D2 D1 DO ?? ? ? ?? ? ? Control Word CS Port B 1= /O Mode 0- BSR Mode Port CL (PC3-PC0) 1=INPUT; 0 = OUTPUT RD 7 Mode Select 00 - Mode 0 01 - Mode 1 1x = Mode 2 Port B 1- INPUT; 0 = OUTPUT WR Mode Select 0 = Mode 0 1=mode 1 Port_CL DO D1 D2 D3 DATA D4 BUS Port A 3 1= INPUT Port CH 0 = OUTPUT (PC7-PC4) 4 1= INPUT; 0 = OUTPUT Port_CH D6 BSR AFFECTS ONLY THE 8255 7 O a. The control register is 00h. O b. The control register is 91h. OC. The control register is 19h. O d. The control register is 11h. E2345ON INTEL 8253/8254/8255

The Intel 8255 processor with an 8-bit data bus is configured as shown in the figure below ( PORT_A as INPUT, PORT_B as OUTPUT, PORT_CL as INPUT and PORT_CH as OUTPUT). Find the control register for the indicated configuration. HINT: Assuming not using the BSR to control PCs PORTS, only considering using the I/O MODE with a digit of 1. A0 Port_A 7 A1 CONTROL WORD (BYTE) D7 D6 D5 D4 D3 D2 D1 DO ?? ? ? ?? ? ? Control Word CS Port B 1= /O Mode 0- BSR Mode Port CL (PC3-PC0) 1=INPUT; 0 = OUTPUT RD 7 Mode Select 00 - Mode 0 01 - Mode 1 1x = Mode 2 Port B 1- INPUT; 0 = OUTPUT WR Mode Select 0 = Mode 0 1=mode 1 Port_CL DO D1 D2 D3 DATA D4 BUS Port A 3 1= INPUT Port CH 0 = OUTPUT (PC7-PC4) 4 1= INPUT; 0 = OUTPUT Port_CH D6 BSR AFFECTS ONLY THE 8255 7 O a. The control register is 00h. O b. The control register is 91h. OC. The control register is 19h. O d. The control register is 11h. E2345ON INTEL 8253/8254/8255

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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