Match List-I (Function) with List-II (Chip) and select the correct answer using the code given below the lists:
|
List-I |
List-II |
|
A. Continues to block lower priority interrupts until it receives an EOI command |
1. 8255 |
|
B. Enables synchronous and synchronous serial communication |
2. 8089 |
|
C. Has I/O ports which can be configured as input ports, output ports or can be used to produce control signals |
3. 8259 |
|
D. Can be programmed to handle all I/O tasks as well as carry out some data processing |
4. 8251 |
1
A - 4, B - 3, C - 1, D - 2
2
A - 3, B - 1, C - 2, D - 4
3
A - 4, B - 1, C - 2, D - 3
4
A - 3, B - 4, C - 1, D - 2