AKD4673-A Datasheet, PDF (15/48 Pages) Asahi Kasei Microsystems – stereo CODEC with built-in MIC/HP amplifier and TSC

The function of the toggle SW
[SW1] (PDN): Power down of AK4673. Keep “H” during normal operation.
[SW2] (DIR): Power down of AK4114. Keep “H” during normal operation.
Keep “L” when AK4114 is not used.
[AKD4673-A]
Indication for LED
[LED1] (ERF): Monitor INT0 pin of the AK4114. LED turns on when some error has occurred to AK4114.
Serial Control
The AK4673 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT4
(CTRL) with PC by 10 wire flat cable packed with the AKD4673.Table 3 shows switch and jumper settings for
serial control.
PC
10 wire
flat cable
Connect
CSN
CCLK/SCI
CDTI/SDA
CDTO/ACK
PENIRQN
10pin
Connector
PORT4
AKD4673
Figure 9. Connect of 10 wire flat cable
Mode
I2C
CAD0=0
CAD0=1
S1
I2C
CAD0
ON
OFF
ON
ON
Table 4. Serial Control Setting
JP25
CTRL_SEL
I2C
JP100
I2CA-SEL
H
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