Control Block Description ADDvantage-32
4-81
4.55 QUAD LTCH
1. Inputs
BIT1: Bit
BIT2: Bit
BIT3: Bit
BIT4: Bit
EN: Bit
2. Outputs
OUT1 Bit
OUT2 Bit
OUT3 Bit
OUT4 Bit
3. Implementation
On a low to high transition of the EN input, the following outputs are sampled.
If BIT1 = 1 then OUT1 = 1 else OUT1 = 0
If BIT2 = 1 then OUT2 = 1 else OUT2 = 0
If BIT3 = 1 then OUT3 = 1 else OUT3 = 0
If BIT4 = 1 then OUT4 = 1 else OUT4 = 0
If EN is low on power-up, then all outputs will equal 0.
If EN is high on power-up, then sample the bits.
FIGURE 4-55. QUAD LTCH BLOCK
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