0
A register is said to be bit addressable if it's individual bits can be set or reset . e.g, let us suppose we have a 8 bit register named D being d7d6d5d4d3d2d1d0 then it is said to be bit addressable if i can set or reset bit dx using some instruction ,
e.g in 8051 SETB and CLR are used for this purpose ,
SETB D.1 makes d0 1 ,
CLR D.4 makesd3 0.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Which are internal bit addressable RAM locations of 8051?
The 16 bytes (128 bits) at internal RAM locations 0x20-0x2F are bit-addressable.
How many bits are bit addressable in the internal RAM and what is the range of the address?
Of the 128-byte internal RAM of the 8051, only 16 bytes are bit-addressable. The rest must be accessed in byte format. The bit-addressable RAM locations are 20H to 2FH.
Which sfrs are byte and bit addressable?
bit from port o to 3
Difference between bit addressable and byte addressable in micro controller?
Hey ! in bit addressable , one can reach the bits (PORT 1.0,PORT1.1,PORT1.2,..etc..) of the ports in the programming while byte addressable only allows the bytes(PORT 1) to be addressed. therefore,there is difference in programming instructions too.
Bit addressable registers in 8051?
just a note: Clarify your question Bit-addressable registers are registers that its bits can be modified individually. that means if you have register named "ACC" that is bit addressable , you can change its bits (D0 -D7) individually by special instructions SETB and CLR. ex: SETB ACC.3 ; will set bit number 4 (remember bit 0) in the register in 8051 there are many bit-addressable registers such as A (ACC), B, SCON, PCON, TCON, p0,p1,p2,p3 . best wishes, drdigital.
What is bit addressable memory in microcontroller 8051?
The bit addressable memory in 8051 is compose from 210 bits: - bit address space: 20H - 2FH bytes RAM = 00H - 7FH bits address; - SFR registers; The following addresses are NOT bit addressable, only 1-byte addressable: - 32 bytes RAM from 00H to 1FH (R0 - R7 registers in all four banks); - 80 bytes RAM general user from 30H to 7FH.
A byte is 8 bits. We call a 4 bit quantity is nibble. if a byte addressable memory has a 14 bit address how many nibbles of storage are in this memory?
There is no such thing as 14-bit byte addressable memory. There IS, however, 16-bit byte addressable memory, which I hope is what you meant. In that case, you simply divide 16 by 4 to get 16/4 = 4 nibbles. If you did in fact mean 14-bit address, then it would be 14/4 = 3.5 nibbles
What is psw in 8051?
It is program status register.It i 8 bit ,bit addressable register.It consists of four maths flag.
A computer has a 32 bit data bus what is the largest number that can be carried into the CPU at a time?
A 32 bit data bus can send out 4 bytes at a time and can take in 2^32 in addressable memory
When was Content Addressable File Store created?
Content Addressable File Store was created in 1982.
What is the basic addressable unit of memory?
That depends on the computer architecture. Most modern architectures address memory down to the 8-bit byte, however some architectures (often supercomputers) only address to the memory word which may be 64 bits or more long. Early computer architectures had various sizes of addressable memory unit: individual bit, decimal digit, 10-digit signed decimal word, 12-digit/character decimal word, 5-bit character, 6-bit character, 12-bit word, 9-bit quarterword, 18-bit halfword, 36-bit word, 20-bit halfword, 40-bit word, 60-bit word, etc.
The smallest addressable unit of storage on a disk is called a?
The smallest addressable unit of storage on a disk is called a sector.
