Crystal CS4281, Programming Manual

Page: 224 / 231

Confidential Draft 3/7/00
CS4281 Programming Manual
224 DS308PRM1
22.5.17 AC ‘97 Status Data Register 2 (ACSDA2)
Address: BA0: 4FCh, Read-Only
Default: 00000000h
Definition: Data register field for an AC ‘97 input frame on the second AC ‘97 link (the
ASDIN2
pin) in a
dual codec system.The contents of this register will not be overwritten by another input frame’s
valid data unless the valid status bit is cleared in ACSTS2 by a read of this register.
Side Effect: When this register is read, the valid status bit in ACSTS2 is cleared.
Bit Descriptions:
SD[15:0] Status Data: This 16 bit field returns data of a read from the AC ‘97 control register.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
SD15 SD14 SD13 SD12 SD11 SD10 SD9 SD8 SD7 SD6 SD5 SD4 SD3 SD2 SD1 SD0
D
ra
ft