参数资料
型号: LC89052T
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO24
封装: 0.225 INCH, TSSOP-24
文件页数: 35/42页
文件大小: 482K
代理商: LC89052T
LC89052T
No.7457-40/42
Table 9.12 Output Register: Sub-code Q Data with CRC Flag (0xED)
DO7
DO6
DO5
DO4
DO3
DO2
DO1
DO0
0
CRC
8
Address
Control
16
Track
24
Index
32
Minute
40
Second
48
Frame
56
Zero
64
abs minute
72
abs second
80
abs frame
When sub-code Q data is included in the input data, this data can be read together with the CRC calculation result.
To read the sub-code Q data, E/INT must be set to be selected as an interrupt output so that the sub-code Q data
readout load signal can be output.
When sub-code Q data is detected, the E/INT signal outputs a high level or a high-level pulse. The sub-code Q data is
updated on each rising edge of the E/INT signal. The readout must be completed within 13.3ms (standard speed) or
6.6ms (2× speed), starting at the E/INT rising edge.
The cyclic redundancy code (CRC) is a set of flags that decide whether the 80 bits of sub-code Q data is correct. Note
that the same data is loaded into both the DO0 and DO1 CRC flags.
Table 9.13 CRC Flag Output
CRC
Output conditions
Low
Errors are found in the sub-code Q data.
High
The sub-code Q data is correct.
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