Preliminary
S3C2451 RISC MICROPROCESSOR AC97 CONTROLLER
27-3
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.
INTERNAL DATA PATH
Figure 27-2 shows the internal data path of S3C2451 AC97 Controller. It has stereo Pulse Code Modulated
(PCM) In, Stereo PCM Out and mono Mic-in buffers, which consist of 16-bit, 16 entries buffer. It also has 20-bit
I/O shift register via AC-link.
Command Addr
Register
(Slot 1)
Command Data
Register
(Slot 2)
PCM Out Buffer
(Regfile 16 bit x
2 x 16 Entry)
(Slot 3, Slot4)
PWDATA
Response Data
Register
(Slot 2)
Mic In Buffer
(RegFile 16 bit
x16 Entry)
(Slot 6)
PCM In Buffer
(Regfile 16 bit x
2 x 16 Entry)
(Slot 3, 4)
PRDATA
Input
Shift
Register
(20 bit)
Output
Shift
Register
(20 bit)
SDATA_IN
SDATA_OUT
AC-Link
APB
Figure 27-2. Internal Data Path