[ASAHI KASEI]
General Description
Input/Output Interface
The AK4533 has the following three I/O interface:
(1) Audio Streaming Interface (AS I/F)
AS I/F is used to transport audio streams (A/D data and D/A data). 5-wire are used for AS I/F; MCLK, SCLK , LRCK, SDO, and
SDI
(2) Audio/Touch Screen Control Interface (A/T I/F)
A/T I/F is used to access internal registers for controlling audio function such as volume control or touch screen function. 4-wire
are used for A/T I/F; CCLK, CS, CDTO, and CDTI
(3) Touch Screen Interface (TS I/F)
TS I/F is used to transmit A/D data that is output from 12bit Touch Screen A/D converter. 4-wire are used for TS I/F; TADE,
TADCK, TADRDY, and TADOUT.
Audio Streaming I/F
MCLK
SCLK
LRCK
SDO
Processor
SDI
Audio/Touch Screen Control I/F
CCLK
CS
CDTO
CDTI
TADE
Touch Panel I/F
TADCK
TADRDY
TADOUT
Figure 10. AK4533 Three Interfaces
<Revision 0.9a>
16
July 00
AKM [ ASAHI KASEI MICROSYSTEMS ]
