Samsung S3C2451X User Manual page 693

S3C2451 RISC MICROPROCESSOR
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.
PWDATA
APB
PRDATA
Command Addr
Register
(Slot 1)
Command Data
Register
(Slot 2)
PCM Out Buffer
(Regfile 16 bit x
2 x 16 Entry)
(Slot 3, Slot4)
PCM In Buffer
(Regfile 16 bit x
(RegFile 16 bit
Response Data
Figure 27-2. Internal Data Path
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.
2 x 16 Entry)
(Slot 3, 4)
Mic In Buffer
x16 Entry)
(Slot 6)
Register
(Slot 2)
AC97 CONTROLLER
Output
SDATA_OUT
Shift
Register
(20 bit)
AC-Link
Input
SDATA_IN
Shift
Register
(20 bit)
27-3