CXD2587Q
§3-5. Digital Out
There are three Digital Out: the type 1 format for broadcasting stations, the type 2 form 1 format for home use,
and the type 2 form 2 format for the manufacture of software.
The CXD2587Q supports type 2 form 1.
Sub Q data which are matched twice in succession after a CRC check are input to the first four bits (bits 0 to 3)
of the channel status.
Digital Out C bit
0
12
34
56
78
9 10 11 12 13 14 15
From sub Q
0
0
00
0
1
00
0
0
0
0
0
ID0 ID1 COPY Emph
16 0
0
000
00
0
0
00
0
0
0
00
32
48
0
176
Bits 0 to 3 Sub Q control bits that matched twice with CRCOK
Table 3-5.
§3-6. Servo Auto Sequence
This function performs a series of controls, including auto focus and track jumps. When the auto sequence
command is received from the CPU, auto focus, 1-track jump, 2N-track jump and N-track move are executed
automatically.
The commands which enable transfer to the CXD2587Q during the execution of auto sequence are $4X to
$EX.
When CLOK goes from low to high while XBUSY is low, XBUSY does not become high for a maximum of
100µs after that point.
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