The pin diagram of 8088-microprocessor, Assembly Language

Pin diagram of 8088 :

The pin diagram of 8088 is shown in given figure. Most of the 8088 pins and their functions are exactly similar to the corresponding pins of 8086.  Hence the pins that have different functions ortimings are discussed in this section. Amongst them are  the pins that have a common fun.

827_pin diagram 8088.jpg

1) AD7-AD0 (Address/Data):  These lines constitute the address/data time multiplexed bus. During T1 the bus is used for conducting addresses and during T2, T3, Tw andT4 states these lines are utilized for conducting data. These are tristate during 'hold acknowledges'and 'interrupt acknowledge' cycles.

2) A15-A8 (Address Bus): These lines provide the address bits A8 to A15 in the total bus cycle. These have not be latched for obtaining a stable valid address.  These  are  active  high  and  are  tristated  during  the 'acknowledge' cycles. Notice, as the 8088 data bus is only of 8 bits, there is no requirement of the BHE signal.

3) SS0: A new pin SS0 is introduced in 8088 instead of BHE pin in 8086. In minimum mode, the pin 880 is logically equivalent to the S8 in maximum mode.

4) IO/M: This pin is similar to M/IO pin of 8086, but it givesan 8085 compatible memory/IO bus interface. The signals DT/R, IO/M, SSO might be decoded to interpret the activities of the microprocessor as in minimum and maximum mode.

 

Posted Date: 10/10/2012 3:42:19 AM | Location : United States







Related Discussions:- The pin diagram of 8088-microprocessor, Assignment Help, Ask Question on The pin diagram of 8088-microprocessor, Get Answer, Expert's Help, The pin diagram of 8088-microprocessor Discussions

Write discussion on The pin diagram of 8088-microprocessor
Your posts are moderated
Related Questions
LENGTH : Byte Length of a Label: This directive is not available in MASM. This is used to mention to the length of a data array or a string. MOV CX. LENGTH ARRAY This sta

Explain the architecture of the file transfer protocol ftp in terms of clients, servers, sockets

NOT : Logical Invert: The NOT instruction complements (inverts) the contents of an a memory location or operand register bit by bit. The instance are as following: Example :

move a byte string ,16 bytes long from the offset 0200H to 0300H in the segment 7000H..

IMUL: Signed Multiplication: This instruction multiplies a signed byte by a signed bit in source operand e in the register AL or signed word in source operand by signed word in th

END : END of Program:- The END directive marks the ending of the assembly language program. When the assembler comes across this END directive, it avoided the source lines avai

I need some guidance on which project to make in assembly language

Program : Write an assembly program to find out the number of positive numbers and negative numbers from a given series of signed numbers. Solution : Take the i th num

Memory Interface                                                                  Figure: Memory Modulation design The memory of a computer contain of number of memo

Hand shaking : Handshaking, or 2-way handshaking, is 1 type of strobe operation. It typically involves 2 handshaking lines: an output line to denote when the board is ready an