Table of Contents
Advertisement
Jumper Options
2.3 Jumper Options
Table 2 - 2. Jumper Options
2.3.1
Default Mode
Table 2 - 3. Default Mode—W1 Jumper Options
2.3.2
PCM Interface
Table 2 - 4. PCM Interface—P1 Jumper Options
2.4 Analog Interface
2-4
The development platform supports a number of functions required by the
codecs:
Manual reset generation
Power options
Convenient mechanical interface to TI's DSK
Refer to SLAU090 for details regarding the development platform.
There are two jumpers on the EVM board that can be configured in various
ways, depending upon the user's requirements. Their functions are briefly pre-
sented in the following tables.
Jumper
Function
W1
Default mode selected
P1.1 - P1.3
MCLK = PCMCLK (SCLK)
Default mode permits the codec to operate from power up without program-
ming any registers via I
Description
Default mode is selected
Power-down mode
See the appropriate data sheet for information regarding the default settings.
The PCM interface transmits and receives data at the PCMO (DOUT) and
PCMI (DIN) terminals respectively. The data is transmitted or received at the
PCMCLK (SCLK) speed once every PCMSYN cycle (FS). The PCMCLK can
be tied directly to a master 2.048 MHz clock (MCLK).
Description
MCLK = SCLK
To make it as easy as possible to connect to a wide range of input and output
devices, the analog interface features simple screw terminals—J2 and J3 for
microphone inputs, and J4 for earphone output.
2
C.
W1
1 - 2
Inserted
Not inserted
P1
P1.1 - P1.3
Inserted
2 - 3
Not inserted
Inserted
Advertisement
Table of Contents
