Q 1. a) An interfacing diagram of 8251A with 8086 system is shown below. An important block is hiddenin the diagram which helps the 8251A interconnection with RS-232 cable. What is the name of thathidden block which is unlabeled in diagram and what is the role of that block in serial communication?D,- D.LatchesA, - AandBuffers8086CPUBusD, - D.DSRTTLM/TO WR RDTxDSerial BusRD RDWR WRIOCS - 0IOCS-1IOCS -2RxDRTS8251ACTSDTRRXRDYTXRDY8284A,IOCS - 3IOCS - 4JOCS - 51OCS -6IOCS -7ClockGeneratorTXEMPTY???SYNDET/BRKDETM/TOG,PCLK+5-VRS-232Serial BusClock DividerClock Divider9-pin D-typeConnectorCLKREADYRESET3-to-8 DecoderRESET ACLKRxCRxDSLD

INTERFACING 8251A TO 8086 PROCESSORThe chip select for I/O mapped devices are generated by using a…

Q 1. a) An interfacing diagram of 8251A with 8086 system is shown below. An important block is hidden in the diagram which helps the 8251A interconnection with RS-232 cable. What is the name of that hidden block which is unlabeled in diagram and what is the role of that block in serial communication? D,- D. Latehes A-A and 8086 CPU Bus Buffers D, - D, DSR TxD RXD TTL M/IO WR RD Serial Bus RD RD WR WR RIS 8251A 1OCS-0 1OCS -1 IOCS - 2 CTS DTR 8284 RXRDY 1OCS-3 JOCS - 4 1OCS-5 JOCS - 6 IOCS - 7 TXRDY TXEMPTY SYNDET/ BRKDET Clock Generator ??? M/TO G, PCLK +5-V RS-232 Serial Bus Clock Divider Clock Divider 9-pin D-type Connector CLK READY RESET 3-to-8 Decoder RESET A CLK RxC RxD CTS

Q 1. a) An interfacing diagram of 8251A with 8086 system is shown below. An important block is hidden in the diagram which helps the 8251A interconnection with RS-232 cable. What is the name of that hidden block which is unlabeled in diagram and what is the role of that block in serial communication? D,- D. Latehes A-A and 8086 CPU Bus Buffers D, - D, DSR TxD RXD TTL M/IO WR RD Serial Bus RD RD WR WR RIS 8251A 1OCS-0 1OCS -1 IOCS - 2 CTS DTR 8284 RXRDY 1OCS-3 JOCS - 4 1OCS-5 JOCS - 6 IOCS - 7 TXRDY TXEMPTY SYNDET/ BRKDET Clock Generator ??? M/TO G, PCLK +5-V RS-232 Serial Bus Clock Divider Clock Divider 9-pin D-type Connector CLK READY RESET 3-to-8 Decoder RESET A CLK RxC RxD CTS

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

28 A paging scheme uses a TLB. A TLB access takes 10ns and main memory access takes 50ns. What is the effective access time (in ns) if the TLB hit ratio is 90%? 50 65 70 55
Convert the C language code to Assembly language code using 8051 instructions set implementing a Piano Game. Refer to the corresponding circuit diagram for specific ports used:pls visit this link for the code because it has exceeded the character count: https://ctxt.io/2/AACQf61OFg
In a datagram network, the needed number of columns is two, but in a virtual-circuit network, the required number of columns is four. Is there any way to make sense of this situation? Is there a distinction between the kinds of addresses that are used by the various networks?
Design a complete hardware for interfacing one 8255 PPI and one 8254 PIT to 8088 MPU (min. mode). The PPI is allocated at port addresses (50-53)h and the PIT is allocated at port addresses (700-706)h.
Describe how "multiplexing" and "demultiplexing" operations occur in the OSI model.
Draw a complete datapath for 5 staged (IF, ID, EX, MEM, WB) single-cycle operation that can perform the MIPS code given below. Show the connectivity and the bus width of the connections (in bits)s. Clearly indicate all ALU and Master control signals necessary to implement thedatapath. MIPS Code: lw $t0, 0($zero) % load x from Memoryadd $t1, $zero, $zeroadd $t2, $zero, $zeroL1: beq $t1, $t0, L2% compare i& xadd $t2,$t2, $t1add $t2,$t2, $t1addi$t1,$t1, 1beq$zero, $zero, L1% go back to the loopL2:sw $t2, 4($zero) % store result to Memory
Problem Five Consider a serial port operating with a baud rate of 10,000 bits per second. Draw the waveform occurring at the UOTX output (voltage levels are +3.3 and 0) when the ASCII 'a' (0x61) is transmitted on UARTO. The protocol is I start, 8 data and 1 stop bit. UARTO is initially idle, and the software writes the Ox61 to UARTO DR R at time=0. Show the UOTx line before and after the frame, assuming the channel is idle before and after the frame.
Two columns are needed in a datagram network, but four are needed in a virtual-circuit network. Is this anything that can be explained? Do the various networks utilize different kinds of addresses?
Draw the diagram of given addressing mode. Show it with examples also. 1- Direct Addressing
Look at daisy chaining, polling, and separate requests for communication dependability in the case of hardware failure in three bus arbitration methods
Two columns are necessary in a datagram network, but four columns are required in a virtual-circuit network. Is there a rationale behind this? Is there a distinction in the types of addresses used by each network?
In a Mil-Std 1553 Bus, one of the Remote Terminals (Terminal Address 4)would like to send the altitude of the aircraft, 1000ft (16-bit unsigned integer)from one of its subsystems, radio altimeter (subaddress 2) to a display subsystem(subaddress 7) at another Remote Terminal (Terminal Address 9). a. Please explain the information transfer on the bus. b. Please provide binary representation for one of the messages.