Silicon Laboratories I2S User Manual

I2S Audio I/O Card

I2S AUDIO I/O CARD USER’S GUIDE

1. Introduction

The Unified Development Platform (UDP) provides a development and demonstration platform for Silicon
Laboratories microcontrollers, short-range wireless devices, and software tools, including the Silicon Laboratories
Integrated Development Environment (IDE).

Figure 1. Unified Development Platform Block Diagram

Rev. 0.1 7/12 Copyright © 2012 by Silicon Laboratories UPIO-USB-AUDIO

I2S Audio I/O Card

2. Relevant Documents

This document provides a hardware ove rview for the Unified Development Platform (UDP) system USB Audio I/O
card. Additional information on the UDP system can be found in the documents listed in this section.

2.1. Motherboard User’s Guide

The UDP Motherboard User’s Guide contains information on the motherboard features and can be found at

www.silabs.com/udp.

2.2. Card User’s Guides

The UDP MCU, I/O, and radio test card User’s Guides can be found at www.silabs.com/udp.

2.3. Examples

The Precision32™ Software Development Kit (SDK) includes example firmware using this board. More details on
the use of the board can be found in the examp le documentation. The SDK can be do wnloaded from the websit e
as part of the Precision32 package at www.silabs.com/32bit-software.

2 Rev. 0.1

I2S Audio I/O Card

USB Debug Adapter

Power

Adapter

(J20)

USB

Connector

(J16)

3. Hardware Setup

Refer to Figure 2 for a diagram of the hardware configuration

1. Connect an MCU card to the UDP motherboard slot.

2. Connect the I/O card to the UDP motherboard slot.

3. (Optional) Connect a radio test card to the radio test card slot in the UDP motherboard.

4. (Optional) Connect an EZLink card to the EZLink card slot in the UDP motherboard.

5. Connect the USB Debug Adapter to the 2x5 debug connector on the MCU card with the 10-pin ribbon
cable.

6. Connect one end of the USB cable to the USB connector on the USB Debug Adapter.

7. Connect the other end of the USB cable to a USB Port on the PC.

8. Connect the ac/dc power adapter to power jack J20 on the UDP motherboard. The board can also be
powered from the J16 USB or J1 mini USB connectors.

9. Move the S3 power switch on the UDP motherboard to the ON position.

Notes:

Use the Reset button in the IDE to reset the target when connected using a USB Debug Adapter.
Remove power from the target boa rd and the USB De bug Adapter before connecting or disconnecting the

ribbon cable from the target board. Connecting or disconnecting the cable when the devices have power
can damage the device and/or the USB Debug Adapter.

Th e MCU card can be used alone without th e motherboard . However, the motherboard must be powered if

an MCU card is connected.

Figure 2. Hardware Setup using the Unified Development Platform

Rev. 0.1 3

I2S Audio I/O Card

4. UPIO-USB-AUDIO I/O Card Overview

The USB Audio I/O card adds a microphone, codec, and headphone jack for audio development and an SD card
connector. The card connects to the I/O Card expansion slot on the UDP motherboard and provides complete
access to the MCU resources. Each expansion board has a unique ID that can be read out of an EEPROM or MCU
on the board, which enables software tools to recognize the connected hardware and automatically select the
appropriate firmware image.

Figure 3 shows the USB Audio I/O card.

Figure 4 and Figure 5 highlight some of the features of the USB Audio I/O card.

4 Rev. 0.1

Figure 3. UPIO-USB-AUDIO I/O Card

I2S Audio I/O Card

Push-Button

Switches

LEDs

Headphone
Jack

SD Card

Connector

Joystick Switch

Graphic
QVGA LCD

Potentiometer for
Volume Control

Microphone Input

Path

Codec

Figure 4. UPIO-USB-AUDIO I/O Card Features (Front)

Rev. 0.1 5

I2S Audio I/O Card

LCD and
Joystick MCU

EBID MCU

Figure 5. UPIO-USB-AUDIO I/O Card Features (Back)

4.1. Microphone Input

The microphone input system on the board consists of two input paths. When SW1 is in the upper position marked
with

codec, the microphone connects to the codec (U14). When SW1 is in the lower position, the microphone

connects to the ADC_IN1 UDP signal through a filter and gain circuit. This filter and gain circuit is biased with the
ADC_VREF UDP signal.

4.2. Codec (U14) and Headphone Jack (J9)

This codec accepts register writes over I2C using the I2C_SDA_EZR and I2C_SCL_EZR signals. The
TIMER_EX_A signal provides the clock, and I2SRX_DOUT_A and I2STX_DOUT_A are th e digi t al aud io dat a input
and output signals. The I2S word sync (WS) and clock (SCK) signals can source from either the I2S receiver or I2S
transmitter on the MCU card. The capacitors, resistors, microphone, and headphone jack connections surrounding
the codec are based on the manufacturer’s recommendations. Table 1 summarizes the codec connections.

Table 1. Codec Connections

Codec Signal UDP Signal

Command I2C data I2C_SDA_EZR

Command I2C clock I2C_SCL_EZR

External clock TIMER_EX_A

I2S word sync (WS) I2STX_DFS_A and I2SRX_DFS_A

I2S clock (SCK) I2STX_CLK_A and I2SRX_CLK_A

I2S input (to codec) data (SD) (DACDAT pin) I2SOUT_DOUT_A

I2S output (from codec) data (SD) (ADCDAT pin) I2SIN_DOUT_A

6 Rev. 0.1

I2S Audio I/O Card

4.3. Potentiometer (R68)

The potentiometer connects to the ADC_IN0 signal and can be used for volume control. The MCU card must
implement firmware to modulate the volume as the potentiometer value changes.

4.4. Switches and LEDs

The I/O card has two push-button switches (S2 and S4) and two LEDs (D1 and D2). The switches are normally
open and pull the signal voltage to ground when pressed. Table 2 shows the UDP signal connections for these
switches and LEDs.

Table 2. Switch and LED Connections

SW or LED UDP Signal

Push-Button Switch (S4) GPIO00
Push-Button Switch (S2) GPIO01

Blue LED (D2) PWR_3.3_BULK

Red LED (D1) GPIO02

4.5. Co-processor MCU (U7)

The I/O card has a C8051F380 co-processor MCU (U7) that controls the Graphic QVGA LCD (LCD1) and reads
the five-direction joystick switch (S1). This co-processor enables stand-alone demos that do not require a PC when
connected with an MCU card through the UDP motherboard.

4.5.1. Graphic QVGA LCD (LCD1)

The graphic QVGA LCD (LCD1) connects to the co-processor C8051F380 MCU EMIF through the J6 connector.
This color LCD (SDT022ATFT by Displaytech Ltd.) has a resolution of 320 x 240 resolution. The power
consumption of the LCD can be measured using the J8 header. Table 3 show the co-processor port pin
connections to the LCD.

Table 3. Joystick Switch Connections

LCD Signal

IM0 PWR_3.3_BULK
IM3

LEDA

VCC
DB10 P4.0
DB11 P4.1
DB12 P4.2
DB13 P4.3
DB14 P4.4
DB15 P4.5
DB16 P4.6
DB17 P4.7

RD P1.6

RS/SCL P3.0

WR P1.7

LCD_RESET P1.1

Co-processor Pin or

UDP Signal

Rev. 0.1 7

I2S Audio I/O Card

4.5.2. Joystick Switch

The I/O card has a five-position joystick switch (S1) that connects to the co-processor C8051F380 MCU. The
joystick is normally open and pulls a signal voltage to ground when the joystick is placed in one of the five
positions. Table 4 show the co-processor port pin connections to the joystick.

Table 4. Joystick Switch Connections

Joystick Position Co-processor Pin

Center P0.6

Up P0.2

Down P0.3

Left P0.4

Right P0.5

4.6. SD Card Connector (U10)

The SD card connector (U10) connects to any standard SD card. The card power from PWR_3.3_BULK can be
enabled or disabled by the SPI_PWR signal connected to GPIO03.

The connector includes two mechanical switches: one detects if a card is inserted, and one indicates the write
protection status of the card. The card detection switch connects to the GPIO04 signal. The JP3 header provides
access to both the switch signals.

4.7. EBID MCU (U1 1 )

The I/O card has a unique ID that can be read out from the Silicon Labs C8051F990 MCU (U11). This MCU
enables software tools to recognize the connected hardware and automatically select the appropriate firmware
image.

8 Rev. 0.1

I2S Audio I/O Card

UDP motherboard

power

to VIO
power

VIO IN power

to Radio card
power

Radio card IN
power

to VDD
power

VDD IN powerJ15 J14 J13

C8051F351

JP3 JP2 JP1R24

R15

R6

5. Using the I/O Card with the UDP Motherboard

5.1. Current Measurement

The power measurement circuitry on the UDP motherboard consists of a Silicon Labs C8051F351 8051 MCU that
measures both input voltage and current consumption of the MCU card, I/O expander, and radio test card. When
using the I/O card, install a shorting block on the UDP Motherboard J15 and J13 connecting the two left pins
together.

5.2. I/O Card Header Connections

The I/O card has four connectors with 100 pins each. These 400 pins are directly tied to the UDP mo therbo ard and
MCU cards. These signals are named and designed to support a wide variety of features and applications, and the
UPIO-USB-AUDIO card implements a subset of these connections.

The MCU cards and I/O cards are designed so that a maximum number of functions are shared between each
card. This allows a particular type of I/O card to be shared amongst all MCU cards that connect to the same
signals.

The I/O card slot includes the following components:

The UPIO-USB-AUDIO card implements the signals described in Table 6, Table 7, and Table 8, Table 9 in the
Appendix.

Figure 6. Power Measurement Diagram

H1 I/O card connector H1
H2 I/O card connector H2
H3 I/O card connector H3
H4 I/O card connector H4

Rev. 0.1 9

I2S Audio I/O Card

5.3. Shorting Blocks: Factory Defaults

The UPIO-USB-AUDIO I/O Card has a factory pre-installed shorting blocks on JP4, JP3, and J8. Figure 7 shows
the position of the factory default shorting blocks.

Figure 7. Shorting Blocks: Factory Defaults

10 Rev. 0.1

6. Schematics

5

5

4

4

3

3

2

2

1

1

D

C

B

A

Tied to Gnd with 0 Ohm Resistor

(in AUDIO_PATH)

HEADPHONE JACK

MIC AMP

AUDIO CODEC

A_GND

A_GND

PWR_3.3_BULK

A_GND

PWR_3.3_BULK

A_GND

A_GND

A_GND

PWR_3.3_BULKPWR_5.0_BULK

PWR_5.0_BULK

PWR_3.3_BULK

PWR_3.3_BULK

PWR_3.3_BULK

A_GND

A_GND

A_GND

A_GND

A_GND

A_GND

A_GND

A_GND

I2STX_WS_A

I2SRX_WS_A

I2STX_SCK_A

I2SRX_SCK_A

I2SRX_SD_A

TIMER_EX_A

I2STX_SD_A I2C_ SDA_EZR

VMID

HP_RIGHT

I2C_SCL_EZR

HP_LEFT

HP_LEFT

HP_RIGHT

VMID

MIC-

ADC_VREF

ADC_IN1

MIC+

MIC-

MIC+

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I2S AUDIO I/O CARD - AUDI O PATH

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I2S AUDIO I/O CARD - AUDI O PATH

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UPIO-USB-AUDIO 1.0

I2S AUDIO I/O CARD - AUDI O PATH

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C62

0.1uF

C58

0.1uF

C46

1uF

+

-

V+

V-

U15A

MC33204

3

2

1

11 4

R60

4.99K

C40

1uF

R66

100K

C54

0.1uF

R43

1.5k

TP3

HP_LEFT

R40

0

C36

0.1uF

C59

1uF

+

-

U15C

MC33204

10

9

8

TP12

MIC+

WM8976

U14

LIP1LIN2L2/GPIO23DNC4DNC5DNC6LRC7BCLK

8

SDIN

17

MODE

18

AUXL

19

AUXR

20

OUT421OUT3

22

ROUT2

23

SPKGND

24

LOUT2

25

VMID

27

AGND

28

ROUT1

29

LOUT1

30

AVDD

31

MICBIAS

32

ADCDAT

9

DACDAT

10

MCLK

11

GND

12

DCVDD

13

DBVDD

14

CSB/GPIO1

15

SCLK

16

EPAD

33

SPKVDD

26

R61

154K

C43

0.1uF

C47

10uF

MK2

MICROPHONE

1

2

R44

1.5k

TP13

LP1

+

-

U15D

MC33204

12

13

14

TP11

MIC-

R63

4.99K

C61

2700pF

C41

0.1uF

TP4

HP_RIGHT

C55

6.8pF

R41

4.7K

R67

0

NI

JP4

VAMP Imeasure

C37

0.1uF

C48

10uF

R56

2K

TP14

LP2

R64

133K

C44

0.1uF

+

C56

10uF

R57

100K

C42

0.1uF

TP2

SPK_NEG

R42

681

R65

9.76K

C33

0.1uF

SW1

SW_SLIDE_2POS

1

2

3

R45

0

C57

0.1uF

+

-

U15B

MC33204

5

6

7

R58

5.1M

C45

1uF

JS3

Jumper Shunt

C60

1uF

J9 AUDIO JACK

134

2

R62

4.22K

TP1

SPK_POS

R59

154K

C34

220pF

C35

0.1uF

C39

1uF

C53

8.2nF

I2S Audio I/O Card

Rev. 0.1 11

Figure 8. UPIO-USB-AUDIO I/O Card Schematic (1 of 5)

I2S Audio I/O Card

5

5

4

4

3

3

2

2

1

1

D

C

B

A

Ground Access

User Input User Feedback

SD/MMC Card

Electronic Board Identification (EBID)

PWR_3.3_BULK

PWR_3.3_BULK

PWR_3.3_BULK

PWR_3.3_BULK PWR_3.3_BULK PW R_3.3_BULK

A_GND

PWR_SYS_BULK

PWR_SYS_BULK

UDPBUS_SCL_A

UDPBUS_SDA_A

C2_DAT_D

C2_CLK_D

C2_CLK_D

C2_DAT_D

GPIO01

ADC_IN0

GPIO02

GPIO00

SD_SW

SPI_NSS0_EZR

SPI_MOSI_EZR

SPI_SCK_EZR

SPI_MISO_EZR

SPI_PWR

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UPIO-USB-AUDIO 1.0

I2S AUDIO I/O CARD - I/O

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Austin, TX 78701

UPIO-USB-AUDIO 1.0

I2S AUDIO I/O CARD - I/O

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400 W Cesar Chavez

Austin, TX 78701

UPIO-USB-AUDIO 1.0

I2S AUDIO I/O CARD - I/O

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25Friday, May 04, 2012

R55

1K

R50

4.7K

TP9

GND

BLUE

R54

0

NI

R51

330

JS2

Jumper Shunt

TP10

A_GND

BLUE

U10

SD/MMC CARD

DAT3/CS1CMD/MOSI

2

GND

3

VDD4CLK/SCLK

5

GND

6

DAT0/MISO7DAT18DAT29SW10WP

11

CASE

12

CASE

13

C49

0.1uF

JP2

CONN SOCKET 4X1

JP3

JUMPER

S4

GPIO0

R69

100

R47

100K

R68

10K

1 3

2

U11

C8051F990

P0.1_AGND

1

GND

3

VDD

4

RST_C2CK5P2.7_C2D

6

P1.77P1.6

8

P0.2

20

P1.1_CPO-

13

P1.0_CPO+

14

P1.310P1.59P1.2

11

P0.3

19

P0.7_IREF

15

P0.6_CONVVSTR

16

P0.0_VREF2RX_P0.517TX_P0.4

18

GND

EPAD

GND

12

D1

RED

GPIO2

D2

Blue

R48

4.7K

C50

0.1uF

C51

1uF

U9

SN74LVC1G66DCK

IN

1

OUT

2

GND

3

C

4

VCC

5

R53

0

NI

R49

100K

C52

0.1uF

TP8

GND

BLUE

S2

GPIO1

12 Rev. 0.1

Figure 9. UPIO-USB-AUDIO I/O Card Schematic (2 of 5)

PWR_3.3_BULK

PWR_3.3_BULK

PWR_3.3_BULK

PWR_SYS_BULK

PWR_3.3_BULK

PWR_3.3_BULK

PWR_SYS_BULK

EMIF_D7

EMIF_D6

EMIF_D5

EMIF_D4

EMIF_D3

EMIF_D2

EMIF_D1

EMIF_D0

LCD_RESET

SW_U

SW_C

SW_L

C2_DAT_E

C2_CLK_E

SW_C

LCD_RESET

SW_R

SW_L

SW_D

SW_U

UDPBUS_SCL_A

UDPBUS_SDA_A

C2_CLK_E

C2_DAT_E

EMIF_OEB

EMIF_WRB

EMIF_A0

EMIF_D0

EMIF_D1

EMIF_D2

EMIF_D3

EMIF_D4

EMIF_D5

EMIF_D6

EMIF_D7

SW_R

SW_D

EMIF_A0

EMIF_OEB

EMIF_WRB

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CTR

S1

JOYSTICK

EVQ-Q7GA50

A1E2B

3

COM

4

D

5

COM

6

C

7

COM

8

GND

9

GND

10

JP1

CONN SOCKET 4X1

R38

100K

R39

4.75K

R26

100K

C4

0.1uF

R33

4.75K

JS1

Jumper Shunt

C5

0.1uF

R27

100K

LCD1

LCD MODULE

C19

0.1uF

R28

4.75K

R35

100K

C32

1uF

R30

100K

C20

4.7uF

R36

4.75K

U7

C8051F380

P0.51P0.42P0.33P0.24P0.15P0.06GND7D+8D-9VDD10REGIN11VBUS

12

RST/C2CK

13

C2D

14

P4.7

15

P4.6

16

P4.5

17

P4.4

18

P4.3

19

P4.2

20

P4.1

21

P4.0

22

P3.7

23

P3.6

24

P3.525P3.426P3.327P3.228P3.129P3.030P2.731P2.632P2.533P2.434P2.335P2.2

36

P2.1

37

P2.0

38

P1.7

39

P1.6

40

P1.5

41

P1.4

42

P1.3

43

P1.2

44

P1.1

45

P1.0

46

P0.7

47

P.06

48

J6

FH19SC-45S-0.5SH(05)

NC1IM02IM13IM24IM35RESET6VSYNC7HSYNC8DOTCLK9ENABLE10DB1711DB1612DB1513DB1414DB1315DB1216DB1117DB1018DB919DB820DB721DB622DB5

23

DB424DB325DB226DB127DB0

28

SDO

29

SDI

30

RD

31

RS/SCL

32

WR

33

CS

34

FMARK

35

VCC

36

GND

37

LEDA

38

LEDK139LEDK240LEDK3

41

YD(NC)42XR(NC)43YU(NC)

44

XL(NC)

45

C16

0.1uF

J8

JUMPER

Imeasure

R16

1K

C17

0.1uF

C18

0.1uF

R70

4.75K

I2S Audio I/O Card

Figure 10. UPIO-USB-AUDIO I/O Card Schematic (3 of 5)

Rev. 0.1 13

I2S Audio I/O Card

SD_SW

SPI_PWR

GPIO02

GPIO01

GPIO00

I2SRX_SD_A

I2SRX_SCK_A

I2SRX_WS_A

SPI_NSS0_EZR

SPI_MOSI_EZR

SPI_MISO_EZR

SPI_SCK_EZR

TIMER_EX_A

I2C_SCL_EZR

I2C_SDA_EZR

I2STX_SD_A

I2STX_SCK_A

I2STX_WS_A

UDPBUS_SCL_A

UDPBUS_SDA_A

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I2S AUDIO I/O CARD - UDP1

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I2S AUDIO I/O CARD - UDP1

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I2S AUDIO I/O CARD - UDP1

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H1

CONN_UDP_IO_H1

GND51UART_TX_SYS52UART_CTS_A53UART_RTS_A54UART_RX_A55UART_TX_A56TIMER_E X_B57TIMER_CT_B58TIMER_E X_A59TIMER_CT_A60I2C_SCL_EZR61I2C_SDA_EZR62I2SOUT_DOUT_A63I2SOUT_CLK_A64I2SOUT_DFS_A65PCA_CH1_B66PCA_CH0_B67PCA_ECI_B68PCA_CH1_A69PCA_CH0_A70PCA_ECI_A71LIN_RX_A72LIN_TX_A73EPCA_CH5_A74EPCA_CH4_A75EPCA_CH3_A76EPCA_CH2_A77EPCA_CH1_A78EPCA_CH0_A79EPCA_ECI_A80USART_UCLK_B81USART_CTS_B82USART_RTS_B83USART_RX_B84USART_TX_ B85SPI_NSS3_A86SPI_NSS2_A87SPI_NSS1_A88SPI_NSS0_A89SPI_MOSI_A90SPI_MISO_A91SPI_SCK_A92CAN_RX_B93CAN_TX_B94USART_UCLK_A95USART_CTS_A96USART_RTS_A97USART_RX_A98USART_TX_ A99GND

100

LPTIMER _OUT_A

1

LPTIMER_IN_A

2

LIN_RX_B

3

LIN_TX_B

4

CAN_RX_A

5

CAN_TX_A

6

EXT_DMA_TRIG17EXT_DMA_TRIG0

8

EXT_DAC_TRIG19EXT_DAC_TRIG010EXT_ADC_TR IG111EXT_ADC_TR IG0

12

EXT_INT113EXT_INT0

14

WAKEUP115WAKEUP0

16

PORT_MATCH117PORT_MATCH0

18

GPIO1519GPIO1420GPIO1321GPIO1222GPIO1123GPIO1024GPIO0925GPIO0826GPIO0727GPIO0628GPIO0529GPIO0430GPIO0331GPIO0232GPIO0133GPIO00

34

CLKOUT0

35

I2SIN_DOUT_A

36

I2SIN_CLK_A

37

I2SIN_DFS_A

38

I2C_SCL_B

39

I2C_SDA_B

40

SPI_NSS3_EZR41SPI_NSS2_EZR42SPI_NSS1_EZR43SPI_NSS0_EZR

44

SPI_MOSI_EZR45SPI_MISO_EZR

46

SPI_SCK_EZR

47

UART_CTS_SYS48UART_RTS_SYS

49

UART_RX_SYS

50

H2

CONN_UDP_IO_H2

GND51EMIF_BE0B52EMIF_CS1B53EMIF_BE1B54EMIF_CS0B55EMIF_ALE56EMIF_OEB57EMIF_WRB58EMIF_A059EMIF_A160EMIF_A261EMIF_A362EMIF_A463EMIF_A564EMIF_A665EMIF_A766EMIF_A867EMIF_A968EMIF_A1069EMIF_A1170EMIF_A1271EMIF_A1372EMIF_A1473EMIF_A1574EMIF_A1675EMIF_A1776EMIF_A1877EMIF_A1978EMIF_A2079EMIF_A2180EMIF_A2281EMIF_A2382HVGPIO783HVGPIO684HVGPIO585HVGPIO486HVGPIO387HVGPIO288HVGPIO189HVGPIO090EPCA_CH5_MOTOR91EPCA_CH4_MOTOR92EPCA_CH3_MOTOR93EPCA_CH2_MOTOR94EPCA_CH1_MOTOR95EPCA_CH0_MOTOR96EPCA_ECI_MOTOR97UDPBUS_SCL_A98UDPBUS_SDA_A99GND

100

CMOSCLK_XTAL2_A1CMOSCLK_XTAL1_A

2

LCD_COM7_A3LCD_COM6_A4LCD_COM5_A5LCD_COM4_A6LCD_COM3_A7LCD_COM2_A8LCD_COM1_A9LCD_COM0_A

10

LCD_SEG39_A11LCD_SEG38_A12LCD_SEG37_A13LCD_SEG36_A14LCD_SEG35_A15LCD_SEG34_A16LCD_SEG33_A17LCD_SEG32_A18LCD_SEG31_A19LCD_SEG30_A20LCD_SEG29_A21LCD_SEG28_A22LCD_SEG27_A23LCD_SEG26_A24LCD_SEG25_A25LCD_SEG24_A26LCD_SEG23_A27LCD_SEG22_A28LCD_SEG21_A29LCD_SEG20_A30LCD_SEG19_A31LCD_SEG18_A32LCD_SEG17_A33LCD_SEG16_A34LCD_SEG15_A35LCD_SEG14_A36LCD_SEG13_A37LCD_SEG12_A38LCD_SEG11_A39LCD_SEG10_A40LCD_SEG09_A41LCD_SEG08_A42LCD_SEG07_A43LCD_SEG06_A44LCD_SEG05_A45LCD_SEG04_A46LCD_SEG03_A47LCD_SEG02_A48LCD_SEG01_A49LCD_SEG00_A

50

Figure 11. UPIO-USB-AUDIO I/O Card Schematic (4 of 5)

14 Rev. 0.1

I2S Audio I/O Card

5 4 3 2

PWR_3.3_BULK

PWR_5.0_BULK

PWR_SYS_BULK

C2_DAT_E

C2_CLK_E

C2_DAT_D

C2_CLK_D

ADC_IN1

ADC_IN0

ADC_VREF

Title

400 W Cesar Chavez

Austin, TX 78701

Title

400 W Cesar Chavez

Austin, TX 78701

Title

400 W Cesar Chavez

Austin, TX 78701

H3

CONN_UDP_IO_H3

GND51NC52C2_DAT_E53C2_CLK_E54C2_DAT_D55C2_CLK_D56C2_DAT_C57C2_CLK_C58C2_DAT_B59C2_CLK_B60C2_DAT_A61C2_CLK_A62EBID_NSS63EBID_MISO64EBID_MOSI65EBID_SCK66GND67PWR_SYS_BULK68PWR_SYS_BULK69PWR_3.3V_BULK70PWR_3.3V_BULK71PWR_3.3V_BULK72PWR_3.3V_BULK73PWR_5.0V_BULK74PWR_5.0V_BULK75PWR_5.0V_BULK76PWR_5.0V_BULK77PWR_VPP_BULK78PWR_VPP_BULK79PWR_HV2_BUS80PWR_HV2_BUS81PWR_HV1_BUS82PWR_HV1_BUS83PWR_AUX_BUS84PWR_AUX_BUS85PWR_IO_BUS86PWR_IO_BUS87PWR_IO_OUT88PWR_IO_OUT89PWR_IO_IN90PWR_IO_IN91PWR_RADIO_OUT92PWR_RADIO_OUT93PWR_RADIO_IN94PWR_RADIO_IN95PWR_VDD_OUT96PWR_VDD_OUT97PWR_VDD_IN98PWR_VDD_IN99GND

100

NC1NC2NC3NC4NC5NC6NC7NC8NC9NC10NC11NC12NC13NC14NC15NC16NC17NC18NC19NC20NC21NC22NC23NC24NC25NC26NC27NC28NC29NC30NC31NC32NC33NC34NC35NC36NC37NC38NC39NC40NC41NC42NC43NC44NC45NC46NC47NC

48

JTAG_TDI_A

49

JTAG_TDO_A

50

H4

CONN_UDP_IO_H4

IDAC_B51IDAC_A52GND53DAC_OUT354DAC_OUT255DAC_OUT156DAC_OUT057DAC_VREFGND58DAC_VREF59GND60ADC_IN361ADC_IN262ADC_IN163ADC_IN064ADC_VREFGND65ADC_VREF66GND67C2D_RX15_A68C2D_RX14_A69C2D_RX13_A70C2D_RX12_A71C2D_RX11_A72C2D_RX10_A73C2D_RX09_A74C2D_RX08_A75C2D_RX07_A76C2D_RX06_A77C2D_RX05_A78C2D_RX04_A79C2D_RX03_A80C2D_RX02_A81C2D_RX01_A82C2D_RX00_A83C2D_TX15_A84C2D_TX14_A85C2D_TX13_A86C2D_TX12_A87C2D_TX11_A88C2D_TX10_A89C2D_TX09_A90C2D_TX08_A91C2D_TX07_A92C2D_TX06_A93C2D_TX05_A94C2D_TX04_A95C2D_TX03_A96C2D_TX02_A97C2D_TX01_A98C2D_TX00_A99GND

100

GND

1

NC2NC3NC

4

ITM_CLK

5

ITM_DAT36ITM_DAT27ITM_DAT18ITM_DAT0

9

NC

10

EZR_GPIO411EZR_GPIO312EZR_GPIO213EZR_GPIO114EZR_GPIO0

15

EZR_VDI

16

EZR_ARSSI

17

EZR_RESET

18

EZR_SI100X_RX

19

EZR_EFIT

20

EZR_DTO

21

EZR_SI100X_TX

22

EZR_NFFS

23

EZRP_NIRQ

24

EZRP_SDN

25

GND

26

EZRP_RX_DATA_OUT

27

EZRP_RX_CLK_OUT

28

EZRP_TX_DATA_IN

29

GND

30

EZRP_CLK_IN

31

GND

32

EXTREG_BD_A

33

EXTREG_OUT_A

34

EXTREG_SN_A

35

EXTREG_SP_A

36

I2V_INN_A

37

I2V_INP_A

38

GND

39

HVDA_INN_B

40

HVDA_INP_B

41

HVDA_INN_A

42

HVDA_INP_A

43

GND

44

CP_NEG_B

45

CP_POS_B

46

CP_NEG_A

47

CP_POS_A

48

CP_OUTA_A

49

CP_OUT_A

50

Figure 12. UPIO-USB-AUDIO I/O Card Schematic (5 of 5)

Rev. 0.1 15

I2S Audio I/O Card

7. Bill of Materials

Table 5. UPIO-USB-AUDIO Card Bill of Materials

Reference Part Number Source Description

C20 C0603X5R6R3-475K Venkel 4.7uF 6.3V ±10% X5R 0603

C32 C39
C40 C45
C46 C51
C59 C60

C34 C0603COG500-221M Venkel 220pF 50V ±20% COG 0603

C4 C5 C16

C17 C18
C19 C33
C35 C36
C37 C41
C42 C43
C44 C49
C50 C52
C54 C57
C58 C62

C47 C48 C0603X5R6R3-106M Venkel 10uF 6.3V ±20% X5R 0603

C53 C0603X7R160-822K Ve nkel 8.2nF 16V ±10% X7R 0603
C55 C0603COG5006R8D Venkel 6.8pF 50V ±0.5pF COG 0603
C56 B45196H5106M309 Kemet 10uF 25V ±20% TANT
C61 C0805X7R500272K Venkel 2700pF 50V ±10% X7R 0805

D1 SML-LX0603SRW LUMEX INC RED 30mA 0603
D2 LB Q39G-L2N2-35-1 OSRAM Opto

H1 H2 H3 H4 FX8-100P-SV1 HIROSE ELECTRIC UDP DC HEADER Header

J6 FH19SC-45S-0.5SH(05) HIROSE ELECTRIC FH19SC-45S-0.5SH(05)

J8 JP3 JP4 TSW-102-07-T-S Samtec JUMPER Header

J9 SJ1-3534N CUI Stereo Audio Jack

JP1 JP2 SSQ-104-23-T-S Samtec 4X1 Socket

JS1 JS2 JS3 SNT-100-BK-T Samtec Jumper Shunt

LCD1 SDT022ATFT DISPLAYTECH LTD. LCD MODULE

MK2 CMA-4544PF-W CUI Inc MICROPHONE
R16 R55 CR0603-10W-1001F Venkel 1K 1/10W ±1% ThickFilm 0603
R26 R27

R30 R35
R38 R47
R49 R57

R66

R28 R33
R36 R39

R70
R40 R45 CR0603-16W-000 Venkel 0 ohm 1A ThickFilm 0603
R41 R48

R50

C0603X7R100-105K Venkel 1uF 10V ±10% X7R 0603

C0603X7R250-104K Venkel 0.1uF 25V ±10% X7R 0603

Blue 15mA 2.85V SMT, ChipLED 0603

Semiconductors Inc

CR0603-10W-1003F Venkel 100K 1/10W ±1% ThickFilm 0603

CR0603-10W-4751F Venkel 4.75K 1/10W ±1% ThickFilm 0603

CR0603-10W-4701F V enkel 4.7K 1/1 0W ±1% ThickFilm 0603

16 Rev. 0.1

I2S Audio I/O Card

Table 5. UPIO-USB-AUDIO Card Bill of Materials

Reference Part Number Source Description

R42 CR0603-10W-6810F Venkel 681 1/10W ±1% ThickFilm 0603
R43 R44 CR0603-16W-152J Venkel 1.5k 1/16W ±5% ThickFilm 0603

R51 CR0603-16W-3300F Venkel 330 1/16W ±1% ThickFilm 0603

R56 CR0603-10W-2001F Venkel 2K 1/10W ±1% ThickFilm 0603

R58 CR0805-8W-515J Ve nkel 5.1M 1/8W ±5% ThickFilm 0805
R59 R61 RC0603-16W-1543F Venkel 154K 1/8W ±1% ThickFilm 0603
R60 R63 CR0603-16W-4991F Venkel 4.99K 1/16W ±1% ThickFilm 0603

R62 CR0603-10W-4221F Venkel 4.22K 1/10W ±1% ThickFilm 0603

R64 CR0603-10W-1333F Venkel 133K 1/10W ±1% ThickFilm 0603

R65 CR0805-10W-9761 Venkel 9.76K 1/10W ±1% ThickFilm 0805

R68 RV100F-30-4K1B-B10K-

B301

R69 CR0603-10W-1000F Venkel 100 1/10W ±1% ThickFilm 0603

S1 EVQ-Q7GA50 PANASONIC CORP JOYSTICK SW 5POS

S2 S4 EVQ-PAD04M PANASONIC CORP MOMENTARY tactile switch 6.5X4.5

SW1 OS102011MS2QN1 C&K SW SLIDE 2POS .1A @ 12V

U10 101-00708-64 Amphenol Commercial

U11 C8051F990-GM Silicon Labs C8051F990 MCU QFN20 3X3

U14 WM8976GEFL/V Wolfson WM8976 3.3V CODEC QFN32 5X5

U15 MC33204DR2 ON

U7 C8051F380-GQ Silicon Labs C8051F380 MCU QFP48 9X9
U9 SN74LVC1G66DCK TI SN74LVC1G66DCK SINGLE

R53 R54 CR0603-16W-000 Venkel 0 ohm 1A ThickFilm 0603 NI (not installed)

R67 CR0402-16W-000 Venkel 0 ohm 1A ThickFilm 0402 NI (not installed)

Alpha (Taiwan) 10K 0.03W 30% Thumbwheel 10MM

SD/MMC CARD MEM

Products

MC33204 QUAD op-amp SO14

SEMICONDUCTOR

Rev. 0.1 17

I2S Audio I/O Card

8. Appendix

Table 6. UPIO-USB-AUDIO Card H1 Pin Descriptions (H1)

I/O Card

Pin

1 LPTIMER_OUT_A
2 LPTIMER_IN_A
3 LIN_RX_B
4 LIN_TX_B
5 CAN_RX_A
6 CAN_TX_A
7 EXT_DMA_TRIG1
8 EXT_DMA_TRIG0

9 EXT_DAC_TRIG1
10 EXT_DAC_TRIG0
11 EXT_ADC_TRIG1
12 EXT_ADC_TRIG0
13 EXT_INT1
14

15
16
17 PORT_MATCH1

18 PORT_MATCH0
19 GPIO15
20 GPIO14
21 GPIO13
22 GPIO12
23 GPIO11
24 GPIO10

25 GPIO09
26 GPIO08

27 GPIO07
28 GPIO06
29 GPIO05
30 GPIO04 SD_SW SD card inserted detection switch
31 GPIO03 SPI_PWR SD card power switch
32 GPIO02 Red LED (D1)
33 GPIO01 Push-Button Switch (S2)
34 GPIO00 Push-Button Switch (S4)
35 CLKOUT0

Signal Name Description

EXT_INT0
WAKEUP1
WAKEUP0

18 Rev. 0.1

I2S Audio I/O Card

Table 6. UPIO-USB-AUDIO Card H1 Pin Descriptions (H1)

I/O Card

Pin

36 I2SIN_DOUT_A
37 I2SIN_CLK_A Codec I2S clock (SCK)
38 I2SIN_DFS_A Codec I2S word sync (WS)
39

40
41
42 SPI_NSS2_EZR

43 SPI_NSS1_EZR
44 SPI_NSS0_EZR
45 SPI_MOSI_EZR
46 SPI_MISO_EZR
47 SPI_SCK_EZR
48 UART_CTS_SYS
49 UART_RTS_SYS
50 UART_RX_SYS
51 GND
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72

Signal Name Description

Codec I2S output (from codec) data (SD) (ADCDAT pin)

I2C_SCL_B
I2C_SDA_B

SPI_NSS3_EZR

SD Card DAT3/CS pin

SD Card CMD/MOSI pin

SD Card DAT0/MISO pin

SD Card CLK/SCLK pin

UART_TX_SYS

UART_CTS_A
UART_RTS_A

UART_RX_A

UART_TX_A
TIMER_EX_B
TIMER_CT_B
TIMER_EX_A Codec external clock
TIMER_CT_A

I2C_SCL_EZR Codec command I2C clock

I2C_SDA_EZR Codec command I2C data

I2SOUT_DOUT_A I2S input (to codec) data (SD) (DACDAT pin)

I2SOUT_CLK_A Codec I2S clock (SCK)
I2SOUT_DFS_A Codec I2S word sync (WS)

PCA_CH1_B

PCA_CH0_B

PCA_ECI_B
PCA_CH1_A
PCA_CH0_A

PCA_ECI_A

LIN_RX_A

Rev. 0.1 19

I2S Audio I/O Card

Table 6. UPIO-USB-AUDIO Card H1 Pin Descriptions (H1)

I/O Card

Pin

73
74

75 EPCA_CH4_A
76 EPCA_CH3_A
77 EPCA_CH2_A

78 EPCA_CH1_A
79 EPCA_CH0_A
80 EPCA_ECI_A
81 USART_UCLK_B
82 USART_CTS_B
83 USART_RTS_B
84 USART_RX_B
85 USART_TX_B
86 SPI_NSS3_A
87 SPI_NSS2_A
88 SPI_NSS1_A
89 SPI_NSS0_A
90 SPI_MOSI_A
91 SPI_MISO_A
92 SPI_SCK_A
93 CAN_RX_B
94 CAN_TX_B
95 USART_UCLK_A
96 USART_CTS_A

P USART_RTS_A
98 USART_RX_A
99 USART_TX_A

100 GND

Signal Name Description

LIN_TX_A

EPCA_CH5_A

20 Rev. 0.1

I2S Audio I/O Card

Table 7. UPIO-USB-AUDIO Card H2 Pin Descriptions (H2)

I/O Card

Pin

1 CMOSCLK_XTAL2_A
2 CMOSCLK_XTAL1_A
3 LCD_COM7_A
4 LCD_COM6_A
5 LCD_COM5_A
6 LCD_COM4_A
7 LCD_COM3_A
8 LCD_COM2_A

9 LCD_COM1_A
10 LCD_COM0_A
11 LCD_SEG39_A
12 LCD_SEG38_A
13 LCD_SEG37_A
14

15
16
17 LCD_SEG33_A

18 LCD_SEG32_A
19 LCD_SEG31_A
20 LCD_SEG30_A
21 LCD_SEG29_A
22 LCD_SEG28_A
23 LCD_SEG27_A
24 LCD_SEG26_A

25 LCD_SEG25_A
26 LCD_SEG24_A

27 LCD_SEG23_A
28 LCD_SEG22_A
29 LCD_SEG21_A
30 LCD_SEG20_A
31 LCD_SEG19_A
32 LCD_SEG18_A
33 LCD_SEG17_A
34 LCD_SEG16_A
35 LCD_SEG15_A
36 LCD_SEG14_A
37 LCD_SEG13_A

Signal Name Description

LCD_SEG36_A
LCD_SEG35_A
LCD_SEG34_A

Rev. 0.1 21

I2S Audio I/O Card

Table 7. UPIO-USB-AUDIO Card H2 Pin Descriptions (H2)

I/O Card

Pin

38 LCD_SEG12_A
39

40
41
42 LCD_SEG08_A

43 LCD_SEG07_A
44 LCD_SEG06_A
45 LCD_SEG05_A
46 LCD_SEG04_A
47 LCD_SEG03_A
48 LCD_SEG02_A
49 LCD_SEG01_A

50 LCD_SEG00_A
51 GND

52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74

Signal Name Description

LCD_SEG11_A
LCD_SEG10_A
LCD_SEG09_A

EMIF_BE0B
EMIF_CS1B
EMIF_BE1B
EMIF_CS0B

EMIF_ALE

EMIF_OEB

EMIF_WRB

EMIF_A0
EMIF_A1
EMIF_A2
EMIF_A3
EMIF_A4
EMIF_A5
EMIF_A6
EMIF_A7
EMIF_A8

EMIF_A9
EMIF_A10
EMIF_A11
EMIF_A12
EMIF_A13
EMIF_A14
EMIF_A15

22 Rev. 0.1

I2S Audio I/O Card

Table 7. UPIO-USB-AUDIO Card H2 Pin Descriptions (H2)

I/O Card

Pin

75 EMIF_A16
76 EMIF_A17

77 EMIF_A18
78 EMIF_A19
79 EMIF_A20
80 EMIF_A21
81 EMIF_A22
82 EMIF_A23
83 HVGPIO7
84 HVGPIO6
85 HVGPIO5
86 HVGPIO4
87 HVGPIO3
88 HVGPIO2
89 HVGPIO1
90 HVGPIO0
91 EPCA_CH5_MOTOR
92 EPCA_CH4_MOTOR
93 EPCA_CH3_MOTOR
94 EPCA_CH2_MOTOR
95 EPCA_CH1_MOTOR
96 EPCA_CH0_MOTOR
97 EPCA_ECI_MOTOR
98 UDPBUS_SCL_A EBID SCL (C8051F990)
99 UDPBUS_SDA_A EBID SDA (C8051F990)

100 GND

Signal Name Description

Rev. 0.1 23

I2S Audio I/O Card

Table 8. UPIO-USB-AUDIO Card H3 Pin Descriptions (H3)

I/O Card

Pin

1 H3_100
2 H3_99
3 H3_98
4 H3_97
5 H3_96
6 H3_95
7 H3_94
8 H3_93

9 H3_92
10 H3_91
11 H3_90
12 H3_89
13 H3_88
14

15
16
17 H3_84

18 H3_83
19 H3_82
20 H3_81
21 H3_80
22 H3_79
23 H3_78
24 H3_77

25 H3_76

Signal Name Description

H3_87
H3_86
H3_85

26 H3_75
27 H3_74
28 H3_73
29 H3_72
30 H3_71
31 H3_70
32 H3_69
33 H3_68
34 H3_67
35 H3_66
36 H3_65

24 Rev. 0.1

I2S Audio I/O Card

Table 8. UPIO-USB-AUDIO Card H3 Pin Descriptions (H3)

I/O Card

Pin

37 H3_64
38 H3_63
39

40
41
42 H3_59

43 H3_58
44 H3_57
45 H3_56
46 H3_55
47 H3_54
48 H3_53
49 JTAG_TDI_A

50 JTAG_TDO_A
51 GND

52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73

Signal Name Description

H3_62
H3_61
H3_60

C2_DAT_E C8051F380 co-processor C2D debugging data
C2_CLK_E C8051F380 co-processor C2CK debugging clock
C2_DAT_D C8051F990 EBID C2D debugging data
C2_CLK_D C8051F990 EBID C2CK debugging clock
C2_DAT _C
C2_CLK_C
C2_DAT_B
C2_CLK_B
C2_DAT_A
C2_CLK_A

EBID_NSS
EBID_MISO
EBID_MOSI

EBID_SCK

GND
PWR_SYS_BULK 3.3 V power supply for the EBID and
PWR_SYS_BULK

PWR_3.3V_BULK
PWR_3.3V_BULK
PWR_3.3V_BULK
PWR_3.3V_BULK

nc

co-processor devices

PWR_3.3_BULK

3.3 V supply used through the I/O board

Rev. 0.1 25

I2S Audio I/O Card

Table 8. UPIO-USB-AUDIO Card H3 Pin Descriptions (H3)

I/O Card

Pin

74 PWR_5.0_BULK 5.0 V power from the UDP motherboard
75

76 PWR_5.0_BULK
77 PWR_5.0_BULK
78 PWR_VPP_BULK
79 PWR_VPP_BULK
80 PWR_HV2_BUS
81 PWR_HV2_BUS
82 PWR_HV1_BUS
83 PWR_HV1_BUS
84 PWR_AUX_BUS
85 PWR_AUX_BUS
86 PWR_IO_BUS
87 PWR_IO_BUS
88 PWR_IO_OUT
89 PWR_IO_OUT
90 PWR_IO_IN
91 PWR_IO_IN
92 PWR_RADIO_OUT
93 PWR_RADIO_OUT
94 PWR_RADIO_IN
95 PWR_RADIO_IN
96 PWR_VDD_OUT
97 PWR_VDD_OUT
98 PWR_VDD_IN
99 PWR_VDD_IN

100 GND

Signal Name Description

PWR_5.0_BULK

26 Rev. 0.1

I2S Audio I/O Card

Table 9. UPIO-USB-AUDIO Card H4 Pin Descriptions (H4)

I/O Card

Pin

1GND
2 H4_99
3 H4_98
4 H4_97
5 ITM_CLK
6 ITM_DAT3
7 ITM_DAT2
8 ITM_DAT1

9 ITM_DAT0
10 H4_91
11 EZR_GPIO4

12 EZR_GPIO3
13 EZR_GPIO2
14
15
16
17 EZR_ARSSI

18 EZR_RESET
19 EZR_SI100X_RX
20 EZR_FFIT
21 EZR_DTO
22 EZR_SI100X_TX
23 EZR_NFFS
24 EZRP_NIRQ

25 EZRP_SDN
26 GND

27 EZRP_RX_DATA_OUT
28 EZRO_RX_CLK_OUT
29 EZRP_TX_DATA_IN
30 GND
31 EZRP_CLK_IN
32 GND
33 EXTREG_BD_A
34 EXTREG_OUT_A
35 EXTREG_SN_A
36 EXTREG_SP_A

Signal Name Description

EZR_GPIO1
EZR_GPIO0

EZR_VDI

Rev. 0.1 27

I2S Audio I/O Card

Table 9. UPIO-USB-AUDIO Card H4 Pin Descriptions (H4)

I/O Card

Pin

37 I2V_INN_A
38 I2V_INP_A
39

40
41
42 HVDA_INN_A

43 HVDA_INP_A
44 GND
45 CP_NEG_B
46 CP_POS_B
47 CP_NEG_A
48 CP_POS_A
49 CP_OUTA_A

50 CP_OUT_A
51 IDAC_B

52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73

Signal Name Description

GND
HVDA_INN_B
HVDA_INP_B

IDAC_A

GND

DAC_OUT3
DAC_OUT2
DAC_OUT1
DAC_OUT0

DAC_VREFGND

DAC_VREF

GND

ADC_IN3
ADC_IN2
ADC_IN1 Microphone ADC input
ADC_IN0 Potentiometer

ADC_VREFGND board ground

ADC_VREF Microphone ADC input bias

GND
C2D_RX15_A
C2D_RX14_A
C2D_RX13_A
C2D_RX12_A
C2D_RX11_A
C2D_RX10_A

28 Rev. 0.1

I2S Audio I/O Card

Table 9. UPIO-USB-AUDIO Card H4 Pin Descriptions (H4)

I/O Card

Pin

74
75 C2D_RX08_A
76 C2D_RX07_A

77 C2D_RX06_A
78 C2D_RX05_A
79 C2D_RX04_A
80 C2D_RX03_A
81 C2D_RX02_A
82 C2D_RX01_A
83 C2D_RX00_A
84 C2D_TX15_A
85 C2D_TX14_A
86 C2D_TX13_A
87 C2D_TX12_A
88 C2D_TX11_A
89 C2D_TX10_A
90 C2D_TX09_A
91 C2D_TX08_A
92 C2D_TX07_A
93 C2D_TX06_A
94 C2D_TX05_A
95 C2D_TX04_A
96 C2D_TX03_A
97 C2D_TX02_A
98 C2D_TX01_A
99 C2D_TX00_A

100 GND

Signal Name Description

C2D_RX09_A

Rev. 0.1 29

I2S Audio I/O Card

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30 Rev. 0.1