LC89075W-H SANYO [Sanyo Semicon Device], LC89075W-H Datasheet - Page 44

• Manufacturer Part Number: LC89075W-H
• Description: Digital Audio Interface Receiver with Stereo ADC and Audio Selector
• Manufacturer: SANYO [Sanyo Semicon Device]

14.3 Interrupt Output (INTB)
• Interrupts are output when a change has occurred in the PLL locked status or the output data information, etc.
• Interrupt output consists of the register for selecting the interrupt source, the INTB that outputs the state transition,
• When “INTBP=1” (initial value), INTB outputs “L” upon occurrence of an interrupt while “H” is output. Following
• The interrupt sources can be selected from among the following items. Multiple sources can be selected at the same
• The contents of the set interrupt sources are written in address 0Fh when the source occurs. However, when the
• Source item 2 uses the oscillator amplifier clock, so when monitoring source item 2 even while the PLL is locked, the
• INTB outputs “L” when a source occurs, and is cleared (“H”) immediately after address 0Fh read is set.
• INTB is not cleared other than when the reset process is performed with XMODE or the address 0Fh is set.
and the registers that store the interrupt source data.
this “L” output, INTB is cleared when the interrupt source output register is read, and returns to “H” output.
time with the contents of address 0Eh. INTB outputs the OR calculation result of the selected interrupt sources.
INTB output = (Selected source 1) + (Selected source 2) + ... + (Selected source n)
contents of source items 1, 4 and 7 are read, the ERRF, NPCMF and DSTATE pin statuses are output, respectively.
oscillation amplifier must be set to the continuous operation mode.
No.
1
2
3
4
5
6
7
ERRF
INTB
CSB
SCK
SO
SI
D0
D1
D2
D3
D4
D5
D7
Address 0Eh
Hi-Z
No change in INT
CSRNW
PCRNW
ERROR
UNPCM
EMPHA
FSCHG
DATAM
Figure 14.6 INTB Output Timing Example (when “INTBP=0”)
Table 14.1 Interrupt Source Setting Contents
Source set
Output when ERRF pin status has changed.
Output when input fs calculation result has changed.
Output when channel status data of the first 40 bits has been updated.
Output when NPCMF pin status has changed.
Output when burst preamble Pc has been updated.
Output when emphasis information has changed.
Output when DSTATE pin status has changed.
Adr.0Eh
ERROR
LC89075W-H
INT “L”
Source read
Adr.0Fh
Description
INT “H”
Output
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