8

ATSAM3103

6093A–DRMSD–25-Oct-04

R|B

2

In

5

SmartMedia Ready Busy/ status

P0.13

2

In

5

General-purpose input pin

IRQ

8

Out

6

Slave 8-bit interface interrupt request. High when data is ready to be

transferred from chip to host. Reset by a read from host (CS = 0 and RD = 0)

SMRE

8

Out

6

SmartMedia read enable (RE), active low

FS0

8

In

6

Freq sense, sensed at power up. Together with FS1, allows the firmware

to know the operating freq of the chip (see FS1).

P0.8

8

I/O

6

General-purpose I/O pin

INT

8

Out

6

Serial slave synchronous interface data request, active low

MIDI_IN

9

In

7

Serial MIDI in

P0.14

9

In

7

General-purpose input pin

SDIN

9

In

7

Serial slave synchronous interface input data

MIDI_OUT

10

Out

8

Serial MIDI out

FS1

10

In

8

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

operating frequency of chip as follows:

00

6.9552 MHz

01

9.6 MHz

10

11.2896 MHz

11

12.288 MHz

P0.9

10

I/O

8

General-purpose I/O

DABD3 - 0

42, 41, 40, 39

Out

-

Four stereo channels of digital audio output, I2S format

CLBD

6

Out

-

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

corresponding CLAD3 - 0 is not used.

WSBD

7

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

5

Out

-

External DAC/Codec master clock. Same frequency as X2 pin. Can be

programmed to be 128 x Fs, 192 x Fs, 256 x Fs, 384 x Fs, where Fs is the

DAC/Codec sampling rate.

DAAD0

34

In

9

Stereo audio data input, I2S format. Can operate on CLBD master rate or

CLAD0 external rate when sampling rate conversion is requested.

P0.15

34

In

9

General-purpose input pin

DAAD3 - 1

38, 37 35

In

Pd

-

Three additional channels of stereo audio input, I2S format. Can

individually operate on CLBD master rate or corresponding CLAD3 - 1

when sampling rate conversion is requested.

DAAD3 - 1 have built-in pull-downs. They may be left open if not used.

MUTE

11

I/O

10

External DAC/Codec Mute. Sensed at power up. If found high, then MUTE

becomes an active high output. If found low, then MUTE becomes an

active low output.

P1.6

11

I/O

10

General-purpose I/O pin

SMCE

29

Out

11

SmartMedia chip enable (CE), active low

P1.5

29

I/O

11

General-purpose I/O pin

SMALE

28

Out

12

SmartMedia address latch enable (ALE)

Table 2. Pinout by Pin Name (Continued)

Pin Name

Pin Number

Type

Sharing Description