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PRELIMINARY
AC97 CONTROLLER
S3C6400 RISC MICROPROCESSOR
35-2
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
AC97 CONTROLLER OPERATION
This section explains the AC97 Controller operation such as AC-Link, Power-down sequence and Wake-up
sequence.
BLOCK DIAGRAM
Figure 35-1 shows the functional block diagram of S3C6400 AC97 Controller. The AC97 signals form the AC-
link, which is a point-to-point synchronous serial inter-connecting that supports full-duplex data transfers. All digital
audio streams and command/status information are communicated over the AC-link.
APB
I/F
DMA
Engine
Interrupt
Control
MIC in
FIFO
PCM
out FIFO
PCM in
FIFO
SFR
AC-link
I/F
FSM & Control
APB
AC-link
Figure 35-1. AC97 Block Diagram