LC89057W-VF4A-E SANYO [Sanyo Semicon Device], LC89057W-VF4A-E Datasheet - Page 33

• Manufacturer Part Number: LC89057W-VF4A-E
• Description: Digital Audio Interface Transceiver
• Manufacturer: SANYO [Sanyo Semicon Device]

11.1.3 Validity flag input (VI)
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11.1.4 User data input (UI)
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sync signal is configured in PBSEL[1:0] as in the case of the DIR function. After the setting, the signal is output from
CKST/PB.
Validity flags can be input from RX5/VI by switching the contents of RX5/VI input by VISEL.
The timing of writing a validity flag is shown below. The validity flag can be also written with the microcontroller
interface, but port settings have priority over the validity flag.
Writing validity flags with the microcontroller interface is done using VMODE.
User data can be input from RX6/UI by switching the contents of RX6/UI input by UISEL.
The timing of writing the user data is shown below.
It is also possible to write user data using the preamble B sync signal as the reference. Generation of the preamble B
Internal latch signal
Internal latch signal
TLRCK
TBCK
TLRCK
TBCK
VI
UI
RX5/VI
0
1
Figure 11.2 Validity Flag Input Timing
Figure 11.3 User Data Input Timing
V-L1
L1
U
LC89057W-VF4A-E
Table 11.1 RX5/V1 Input
V-R1
R1
U
V-L2
L2
Output Conditions
U
No error
Error
V-R2
R2
U
V-L3
L3
U
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