Refer to Figure 10-45. This block decodes the three BCD digits from the timer block and drives
Question:
Refer to Figure 10-45. This block decodes the three BCD digits from the timer block and drives the active-LOW 7-segment LED displays. It must also accomplish leading zero blanking.
(a) Use 7447 standard logic blocks to implement this block.
(b) Use AHDL to implement this block.
(c) Use VHDL to implement this block.
Figure 10-45
Transcribed Image Text:
keypad [9..0] dock 100 Hz startn stopn clearn door closed INPUT: INPUT INPUT INPUT INPUT INPUT encoder key[9.0 D3.01 dik pgt 1Hz enablen loadn inst4 Timer input and control control startn stopn clearn door closed timer done inst6 magnetron Magnetron control decode sec_ones[3..0] sec_ones_segs[0..6] sec_tens[3..0] sec_tens_segs[0..6] min[3..0] min_segs[0..6] inst 7-Segment decoder/Drivers timer data(3.0] loadn cim clock enable inst3 QUTBUT sec ones(3.0] sec_tens[3..0] mins[3..0] zero Minutes/Seconds counter > mag on voc OUTPUT OUTPUT OUTPUT JOUTPUT Blank digit > blank_digit[0..6] sec_ones segs[0..6] sec_tens_segs[0..6] >min_segs[0..6]
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Related Book For
Digital Systems Principles And Application
ISBN: 9780134220130
12th Edition
Authors: Ronald Tocci, Neal Widmer, Gregory Moss
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