UCB1510DB Просмотр технического описания (PDF) - Philips Electronics

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UCB1510DB

AC97 digital modem codec

Philips Electronics 

Philips Semiconductors

UCB1510

AC97 digital modem codec

12. AC97 interface

12.1 Control register data transfer

The AClink frames is made of 13 slots. Slot0 is a 16-bit long tag slot, the remaining 12

slots are 20-bit long data transfer.

SYNC

Clock:12.288MHz

SDOUT (SLOT #)

48KHz

16 bits

20bits

#0 #1 #2 #3 #4 #5 #6 #7 #8 #9 #10 #11 #12 #0

Fig 6. AClink frame slot definition

Register update is done at the end of slot 2. The new register value is effective

thereafter.

Slot #0 and slot #3 to #12 are shared by all codecs (primary and secondary). Multiple

codecs using the same slot cannot be used at the same time. Slot #1 and slot #2 are

used for register transfer and are codec specific. Addressing is defined in the

Tag slot #0: The UCB1510 will send a 1 as Tag slot bit 15 whenever the AClink is

active (MLNK is 0).

9397 750 06856

Preliminary specification

Rev. 01 — 4 February 2000

© Philips Electronics N.V. 2000. All rights reserved.

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