When Bus Grant (BG) = 1 in direct memory access (DMA) transfer, then what function read line and write lines perform?
1
Read line act as input line and write line act as output line from DMA
2
Read line and write line act as output lines from DMA controller
3
Read line and write line act as input line allowing CPU to communicate with internal DMA register
4
Read line act as output line and write line act as input line from DMA controller