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4.3 Data Transmission
4.3.2 Data Transfer from the LDC
Data is transferred out of the S-LINK as if the LDC were writing to a FIFO in the ROMB. The LDC provides a free-running clock (LCLK) which is always present if LDOWN# is high. If LDOWN# is low, LCLK is undefined.
When valid data arrives on the S-LINK, the LDC sets LWEN# low. The data words can then be latched on each low-to-high transition of LCLK. A timing diagram is shown in Figure 3.
FIGURE 3. Data Transfer from the LDC
The S-LINK Interface Specification - 27 MARCH 1997
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