Texas Instruments SLEU056 User Manual
Page 17
Description of Connectors
2-5
Detailed Description of the EVM
Table 2−1. Description of J160 and J170
Pin No.
Description
Analog Input Connector (J160)
1
Left Channel Input
2
Ground
3
Right Channel Input
Analog Output Connector (J170)
1
Left Channel output
2
Ground
3
Right Channel Output
2.4.4
PC and I
2
C Interface (J300)
The PC interface using the attached special cable to parallel/printer port on the
PC. This makes it possible to control the TAS3002 digital audio processor
totally from the PC using the special DCT software saved on the PurePath
Digital
t amplifier CD-ROM.
The PC interface can also be used to control the TAS3002 from an external
microcontroller of your own choice.
Figure 2−5. Pin Numbers at the Parallel Port/I
2
C Interface/I
2
C (J300)
9
1
3
4
2
5
6
7
8
Table 2−2. Description of J300
Pin No.
Pin Description
I/O
Net Name on Schematic
1
Power ON Reset
O
POWER−ON−RESET
2
Serial Data Line (SDA)
I/O
SDA−BI
3
Serial Clock Line (SCL)
I/O
SCL−BI
4
Serial Data Line In
I
SDA−IN
5
Serial Clock Line Out
O
SCL−OUT
6
Reserved
−
For future use
7
Serial Data Line Out
O
SDA−OUT
8
Serial Clock Line In
I
SCL−IN
9
0 V
−
GND
Pin 2 (SDA) and pin 3 (SCL) are used for communication between an external
micro-controller and the digital audio processor.