Signal Descriptions - Samsung S3C6400X User Manual

IIS-BUS INTERFACE
BLOCK DIAGRAM
TxDREQ
TxDACK
System
Bus
RxDREQ
RxDACK

SIGNAL DESCRIPTIONS

IIS external pads are shared with other IPs like PCM, AC97 and etc. In order to use these pads for IIS, GPIO must
be set before the IIS started. For more information, refer to the GPIO chapter of this manual for proper GPIO
setting.
Name
Xi2sCLK[0]
Xi2sCDCLK[0]
Xi2sLRCK[0]
Xi2sDI[0]
Xi2sDO[0]
Xi2sCLK[1]
Xi2sCDCLK[1]
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
36-2
Specifications and information herein are subject to change without notice.
TxDMA
FSM
TxFIFO
Register
File
RxFIFO
RxDMA
FSM
Figure 36-1. IIS-Bus Block Diagram
Type Source/Destination
Input/Output
Output
Input/Output
Input
Output
Input/Output
Output
TxR
Channel
Control
Clock
Control
Pad IIS-bus0 serial clock
Pad IIS0 Codec system clock
Pad IIS-bus0 channel select clock
Pad IIS-bus0 serial data input
Pad IIS-bus0 serial data output
Pad IIS-bus1 serial clock
Pad IIS1 Codec system clock
S3C6400X RISC MICROPROCESSOR
I2SSCLK
I2SLRCLK
Tx Shift
I2SSDO
Register
Rx Shift
I2SSDI
Register
CDCLK
Description