Samsung S3C6400X User Manual page 1062

AC97 CONTROLLER
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
APB
I/F
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
35-2
Specifications and information herein are subject to change without notice.
SFR
DMA
Engine
Interrupt
Control
Figure 35-1. AC97 Block Diagram
S3C6400 RISC MICROPROCESSOR
FSM & Control
PCM in
FIFO
PCM
out FIFO
MIC in
FIFO
AC-link
AC-link
I/F