ATSAM3703 datasheet(9/36 Pages) ATMEL

9 / 36 page

6237A–DRMSD–29-May-06

ATSAM3703

DAAD2

Additional channel of stereo audio input, I2S format. Can

operate on CLBD master rate or CLAD2 external rate when

sampling rate conversion is requested. DAAD2 has built-in pull-

down. It may be left open if not used.

CLAD01

Optional bit clock for digital audio inputs DAAD1-0. Used for

sampling rate conversion, for external incoming digital audio

such as AES/BEU or S/Pdif.

DAAD3

Additional channel of stereo audio input, I2S format. Can

operate on CLBD master rate or CLAD3 external rate when

sampling rate conversion is requested. DAAD3 has built-in pull-

down. It may be left open if not used.

WSAD01

Optional word select for digital audio inputs DAAD1-0. Used for

sampling rate conversion, for external incoming digital audio

such as AES/BEU or S/Pdif.

FS1

Freq sense, sensed at power up. FS1|FS0 allow firmware to

know operating freq of chip as follows (optional):00- 6.9552

MHz 01- 9.6 MHz 10- 11.2896 MHz 11- 12.288 MHz

P0.9

General purpose Input pin

CLBD

Out

Audio bit clock for DABD3-0. Audio bit clock for DAAD3-0 if the

corresponding CLAD3-0 is not used.

WSBD

Out

Audio left/right channel select for DABD3-0. Audio left/right

channel for DAAD3-0 if the corresponding WSAD3-0 is not

used.

CKOUT

Out

External DAC/Codec master clock. Same or double frequency

as X2 pin. Can be programmed to be 128xFs, 192xFs, 256xFs,

384xFs, 512xFs, Fs being the DAC/Codec sampling rate.

WA11 - WA0

35, 34, 31, 30, 29, 27,

26, 25, 23, 21, 20, 19

Out

SSTL

Multiplexed addresses for external SDRAM or DDR SDRAM

memory

P2.11 - P2.0

35, 34, 31, 30, 29, 27,

26, 25, 23, 21, 20, 19

I/O

SSTL

General purpose I/O pins

WCKE

Out

SSTL

Clock Enable for external SDRAM or DDR SDRAM memory

P2.12

I/O

SSTL

General purpose I/O pin

WBA1 - WBA0

37, 36

Out

SSTL

Bank selects for external SDRAM or DDR SDRAM memory

P2.14 - P2.13

37, 36

I/O

SSTL

General purpose I/O pins

WDQ3

I/O

SSTL

External memory SDRAM or DDR SDRAM data bit 3

P1.3

I/O

SSTL

General purpose I/O pins

Table 6-1.

ATSAM3703 Pin Description (Continued)

Pin Name

Pin Number

Type

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