ADAV802_15 datasheet(35/53 Pages) AD

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Preliminary Technical Data

ADAV802

Rev. Pr G | Page 35 of 53

Table 41. Autobuffer Register

RES

Zero_Stuff_IU

Auto_Ubits

Auto_CSBits

IU_Zeros3-0

3,2,1,0

ADDRESS = 0010001

Zero_Stuff_IU

Enables the addition or subtraction of zeros between IUs during autobuffering of the

user bits in IEC60958-3 format

0 = No Zeros added or subtracted

1 = Zeros can be added or subtracted between IUs

Auto_UBits

Enables the User Bits to be autobuffered between the AES3/SPDIF receiver and

transmitter

0 = The User Bits are not autobuffered

1 = The User Bits are autobuffered

Auto_CSBits

Enables the Channel Status bits to be autobuffered between the AES3/SPDIF

receiver and transmitter

0 = The Channel Status bits are not autobuffered

1 = The Channel Status bits are autobuffered

IU_Zeros3-0

Sets the maximum number of zero stuffing to be added between IUs while

autobuffering up to a maximum of 8

0000 = 0

0001 = 1

......

0111 = 7

1000 = 8

Table 42. Sample Rate Ratio MSB Register (Read Only)

RES

SRCRATIO14-SRCRATIO08

6,5,4,3,2,1,0

ADDRESS = 0010010

SRCRATIO14-08

The seven most significant bits of the fifteen bit sample rate ratio

Table 43. Sample Rate Ratio LSB Register (Read Only

SRCRATIO07-SRCRATIO01

7,6,5,4,3,2,1,0

ADDRESS = 0010011

SRCRATIO07-00

The eight least significant bits of the fifteen bit sample rate ratio

Table 44. Preamble-C MSB Register (Read Only)

PRE_C15-PRE_08

7,6,5,4,3,2,1,0

ADDRESS = 0010100

PRE_C15-08

The eight most significant bits of the sixteen bit Preamble-C when Nonaudio data is detected according to

the IEC60937 standard, otherwise bits show zeros

Table 45. Preamble-C LSB Register (Read Only)

PRE_C07-PRE_C00

7,6,5,4,3,2,1,0

ADDRESS = 0010101

PRE_C07-00

The eight least significant bits of the sixteen bit Preamble-C when Nonaudio data is detected according to the

IEC60937 standard, otherwise bits show zeros

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