In 8257 register format, the selected channel is disabled after the terminal count condition is reached when
A. auto load is set
B. auto load is reset
C. TC STOP bit is reset
D. TC STOP bit is set
Answer:A
In 8257 register format, the selected channel is disabled after the terminal count condition is reached when
A. auto load is set B. auto load is reset C. TC STOP bit is reset D. TC STOP bit is set
Explanation: If the TC STOP bit is set, the selected channel is disabled after the terminal count condition is reached, and it further prevents any DMA cycle on the channel.