Datasheet

   
      
    ± 
SLAS262C − OCTOBER 2000 − REVISED MAY 2003
27
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operation timing diagrams (continued)
123 546
7
13
14
15 16
1
ID15 1D14 ID13 1D12
12
ID15 ID14ID11 ID10 ID9 ID4 ID3 ID2 ID1 ID0
OR
Don’t Care
CS
FS = High
SDI
INT
EOC
SDO
Hi-Z
The dotted lines means signal may or may not exist.
Figure 9. Write Cycle, CS Initiates Operation, FS = 1
FIFO READ Operation: When the FIFO is used, the first command after INT
is generated is assumed to be
the FIFO READ. The first FIFO content is output immediately before the command is decoded. If this command
is not FIFO READ, the output is terminated. Using more layers of FIFO reduces the time taken to read multiple
conversion results, because the read cycle does not generate an EOC or INT
, nor does it make a data
conversion. Once the FIFO is read, the entire contents in FIFO must be read out. Otherwise, the remaining data
is lost.
123
5
467 13
14 15
16
1
ID15 1D14 ID13 1D12
OD11 OD10 OD9 OD4 OD3 OD2
12
ID15 ID14
OD15 OD14 OD13 OD12 OD15 OD14
OR
SCLK
CS
FS = High
SDI
INT
EOC
SDO
OD[15:2] (for TLC3574/78) or OD[15:4](for TLC2574/78) is the FIFO content.
Don’t Care
Hi-Z
The dotted lines means signal may or may not exist.
Figure 10. FIFO Read Cycle, CS Initiates Operation, FS = 1