Preliminary
IIS MULTI AUDIO INTERFACE
S3C2451X RISC MICROPROCESSOR
26-2
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.
BLOCK DIAGRAM
Reg
ister File
Figure 26-1. IIS-Bus Block Diagram
FUNCTIONAL DESCRIPTIONS
IIS interface consists of register bank, FIFOs, shift registers, clock control, DMA finite state machine, and channel
control block as shown in
Figure 26-
1. Note that each FIFO has 32-bit width and 16 depth structure, which
contains left/right channel data. So, FIFO access and data transfer are handled with left/right pair unit.
Figure 26-
1 shows the internal functional block diagram of IIS interface, for actual GPIO pad name, please refer prior page’s
SIGNALS table. For more detail guide of GPIO setting, please refer the GPIO chapter.