Rev. 1.0, 02/00, page 817 of 1141
28.3.2
Slice Sequence
Figure 28.11 shows the slice sequence.
Yes
No
Is it the last
line in the field to be
sliced?
• Line detection
The specified slice line and field match the line
count and detected field
• Clock run-in detection
Count the number of clock run-in pulses in clock
run-in period
• Start bit detection
Initiate start bit detection according to the start
bit detection starting position specified by
the register
• Data sampling
Data is stored in the 16-bit shift register at a data
sampling clock of 32xfh generated after the time
specified by the register from the start bit
detection
Store data in the
16-bit shift register
to the slice data
register
• Data end detection
Detect whether or
not slice data is input
at the 17th data
sampling clock pulse
Set the clock run-in count
Set the start bit detection flag
(Enable the start bit detection)
Set clock run-in detection flag
(Enable the clock run-in detection)
Set the slice completion interrupt
flag
Read the slice detection register
and slice data register
Write the slice line setting
register
Set the slice line enable bit
Set the data end detection flag
(Data end: No data detected at
the 17th data sampling clock
pulse)
Reset the slice enable bit
Figure 28.11 Slice Sequence