CS8415A-CSZ Cirrus Logic Inc, CS8415A-CSZ Datasheet - Page 28

• Manufacturer Part Number: CS8415A-CSZ
• Description: IC,Digital Audio Receiver,CMOS,SOP,28PIN,PLASTIC
• Manufacturer: Cirrus Logic Inc

Specifications of CS8415A-CSZ

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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8.15
8.16
8.17
8.18
ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND ABS SECOND
ABS MINUTE
ABS FRAME
CONTROL
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
ORR7
7
7
7
0
User Data Buffer Control (13h)
DETUI - D to E U-data buffer transfer inhibit bit.
Default = ‘0’
0 - Allow U-data D to E buffer transfers
1 - Inhibit U-data D to E buffer transfers
Q-Channel Subcode Bytes 0 to 9 (14h - 1Dh) (Read Only)
The following 10 registers contain the decoded Q-channel subcode data
Each byte is LSB first with respect to the 80 Q-subcode bits Q[79:0]. Thus bit 7 of address 14h is Q[0] while
bit 0 of address 0Eh is Q[7]. Similarly bit 0 of address 1Dh corresponds to Q[79].
OMCK/RMCK Ratio (1Eh) (Read Only)
This register allows the calculation of the incoming sample rate by the host microcontroller from the equation
ORR=Fso/Fsi. The Fso is determined by OMCK, whose frequency is assumed to be 256 Fso. ORR is rep-
resented as an unsigned 2-bit integer and a 6-bit fractional part. The value is meaningful only after the PLL
has reached lock. For example, if the OMCK is 12.288 MHz, Fso would be 48 kHz (48 kHz =
12.288 MHz/256). Then if the input sample rate is also 48 kHz, you would get 1.0 from the ORR regis-
ter.(The value from the ORR register is hexadecimal, so the actual value you will get is 40h). If F
63
jitter on either clock can cause the LSB ORR[0] to oscillate.
ORR7:6 - Integer part of the ratio (Integer value=Integer(SRR[7:6]))
ORR5:0 - Fractional part of the ratio (Fraction value=Integer(SRR[5:0])/64)
C-bit or U-bit Data Buffer (20h - 37h)
Either channel status data buffer E or user data buffer E is accessible through these register addresses.
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64
, ORR will saturate at the value FFh. Also, there is no hysteresis on ORR. Therefore a small amount of
ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE ABS MINUTE
ABS FRAME
CONTROL
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
ORR6
6
6
6
0
ABS FRAME
CONTROL
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
ORR5
5
5
5
0
ABS FRAME
CONTROL
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
ORR4
4
0
4
4
ABS FRAME
ADDRESS
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
ORR3
3
3
3
0
ABS FRAME
ADDRESS
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
ORR2
2
0
2
2
ABS FRAME
ADDRESS
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
DETUI
ORR1
1
1
1
CS8415A
ABS FRAME
ADDRESS
SECOND
MINUTE
FRAME
TRACK
INDEX
ZERO
SO
ORR0
DS470F4
0
0
0
0
/F
SI
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