Pmod Shield Reference Manual. Overview. 1 Functional Description. Revised June 26, 2018 This manual applies to the Pmod Shield rev.

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1 1300 Henley Court Pullman, WA digilent.com Reference Manual Revised June 26, 2018 This manual applies to the rev. B Overview The is an adapter board from the Uno R3 style shield headers present on many Digilent system boards to. It provides the additional circuitry and connectors necessary to allow Digilent s to be plugged directly in without the hassle of messy wires and cables. The has five 2 6 Digilent ports and provides access to the IO available via the shield headers. Features include: Compatible with the,,, PYNQ, Arty boards Provides access to our full line of peripheral modules () Five 2 6-pin Digilent connectors with, SPI, UART, and I2C support One I2C daisy chain connector One additional 6-pin SPI connector The. 1 al Description The Digilent follows the Uno R3 header standard but adds an additional row of headers for greater IO access. The is compatible with Arduino base boards supporting the Uno R3 standard, but is primarily designed for use with Digilent host boards. When used in conjunction with Digilent boards, the provides the necessary supporting hardware and connectors to easily add s to your design. The has the following connectors: J1 & J3: Digital Pass-Through Connectors This connector provides most of the s used by the host board to the board. The remaining s are passed through the. DOC#: Other product and company names mentioned may be trademarks of their respective owners. Page 1 of 10

2 Reference Manual J2: I²C Daisy Chain Connector This is a 2 4 pin male connector that provides access to the I²C s SDA and SCL as well as power from the 3.3 V power bus and ground. This can be used to extend the I²C bus off of the board and to power I²C devices. Digilent has MTE cables and a selection of I²C peripheral modules that can be accessed using this connector. All Digilent I2C s are designed to be daisy chained if desired. J4: Analog Pass-Through Connector This connector passes the analog input pins on the host through the board. J5: Power Pass-Through Connector This connector passes the power connector from the host through the board, and powers the from the host. J6: Default SPI Connector This connector provides access to the SPI s SS, MOSI, MISO, and SCK. J7: I²C Connector This connector provides access to the same SCL and SDA pins provided on J2 but through a female header. JA-JE: Digilent Connectors These connectors provide access to the s of the host in a form factor which readily allows Digilent s to be connected. UART, SPI and protocols are supported via the connectors. 2 I 2 C Busses and Connectors The Inter-Integrated Circuit (I²C) Interface provides a medium speed (100K or 400K bps) synchronous serial communications bus. The I²C interface provides master and slave operation using either 7-bit or 10-bit device addressing. Each device is given a unique address, and the protocol provides the ability to address packets to a specific device or to broadcast packets to all devices on the bus. Refer to the host board manufacturer's datasheet for detailed information on configuring and using the I²C interface. The is designed to provide access to both I²C interfaces present on the Digilent microcontroller boards. One of the I²C connectors is available on header J2 and the other connector is located on several other connectors on the. J2 is a standard 2 4 pin header connector with spaced pins. It provides access to the I²C s, SCL and SDA, plus VCC3V3 and ground. The VCC3V3 can be used to power I²C devices. SCL and SDA are also provided on header J7 as female pins. The I²C bus uses open collector drivers to allow multiple devices to drive the bus s. This means that pull-up resistors must be provided to supply the logic high state for the s. Generally, only one set of pull-ups are used on the bus. Jumpers JP10 and JP11 can be used to disable the on-board pull-ups on I²C #1 if a different value is needed or some other device on the bus is providing the pull-ups or if I²C #1 isn t being used and the pull-ups are interfering with the use of the pins. The on-board pull-ups are enabled by install shorting blocks on JP10 and JP11. Removing the shorting blocks disables the pull-ups. Other product and company names mentioned may be trademarks of their respective owners. Page 2 of 10

3 Reference Manual Digilent has several small IO modules available that can be connected using the I²C connector. These include a 3- axis accelerometer, 4-channel, 12-bit ADconverter, serial character LCD panel, 3-axis gyroscope, real-time clockcalendar, an IO expander, and more. 3 SPI Connector The SPI connector pins on header J6 are as follows: 1 (MISO), 3 (SCK), 4 (MOSI), and 5 (SS). These s also appear on Digilent host microcontroller boards. Jumpers are available on Digilent host microcontroller boards that can used to select whether the host operates as a Master (transmit on MOSI, receive on MISO) or a Slave (transmit on MISO, receive on MOSI) device. By default, the shorting blocks are normally placed in the Master position for the Digilent microcontroller boards to function as an SPI master. Also, a jumper is available on Digilent microcontroller boards that is used to select PWM output (in RD4 position) or the SPI SS function on 5 (in RG9 position). These same s can also be accessed on the top row (pins 1-4) of header JC. Appendix: out Tables Protocol Compatibility Overview Header JA JB JC JD UART (minus CTS and RTS),, SPI, UART (minus CTS and RTS), UART (minus CTS and RTS) UART (minus CTS and RTS), SPI,, UART (minus CTS and RTS) SPI, UART,, SPI JE UART., I2C (top row only) UART (top row only) SPI (top row only), (top row only) Extra s for use with wires Extra s for sue with wires Header JA JA1 26 EBID0PMD0 RE0 JA2 27 EBID1PMD1 RE1 JA3 28 EBID2PMD2 RE2 JA4 29 EBID3RPE3 PMD3RE3 PMD0RE0 PMD0RE0 NA NA PMD1RE1 PMD1RE1 NA NA PMD2RE2 PMD2RE2 NA NA Arduino Uno PMD3RE3 PMD3RE3 NA NA Other product and company names mentioned may be trademarks of their respective owners. Page 3 of 10

4 Reference Manual JA7 30 EBID4AN18 PMD4RE4 JA8 31 EBID5AN17 RPE5PMD 5RE5 JA9 32 EBID6AN16 PMD6RE6 PMD4RE4 PMD4RE4 NA NA PMD5RE5 PMD5RE5 NA NA PMD6RE6 PMD6RE6 NA NA JA10 33 EBID7AN15 PMD7RE7 PMD7RE7 PMD7RE7 NA NA *Header JA is incompatible with single row based Arduino header style boards. Arduino Uno Header JB Screen # JB1 7 AN26A ERXD1 RPE9R E9 Analog input, IC2, INT2, SPI1,3,4,5 slave select, AERXD1 INT2R E9, INT, USBOC INT IC2U1CTS INT2RD9, UART1 CTS, interrupt AIN1PCINT23 PD7 JB2 1 EBIRDY 2RPF8 SCL3RF 8 SPI1 slave select, I2C3 serial cock,, U4TX SCL3S DO3 U1TXR F8 I2C3 serial clock, MOSI, UART1 TX, U1TXSDO1 RF3, UART1 TX, MOSI PCINT17TXD PD1 UART TX, JB3 0 EBIRDY 3RPF2 SDA3R F2 SPI2 slave select, I2C3 serial data,, U4RX SDA3S DI3 U1RXR F2 I2C3 serial data, MISO, UART1 RX, U1RXSDI1 RF2, UART1 RX, MISO PCINT16RDX PD0 UART RX, JB4 38 EBID12 ETXD2 RPD12 PMD12 RD12 UART5 CTS,, T3Ck T5CKS DI1RC4 MISO, U1RTSBCLK 1 SCK1INT0 RF6 UART1 RTS, UART1 IrDA Baud Clock, SPI clock 1, interrupt input, NA NA JB7 36 EBID10 ETXD0 RPF1P MD10 RF1, T6CK ETXEN PMD14 CN15R D6 CN15RD6 NA NA JB8 34 SQICS1 RPD5R D5, T4CK PMRD CN14R D5 PMRDCN1 4RD5 NA NA JB9 10 AN11C 2INC RPG9P MA2R G9, Analog, SPI_SS2, PWM 5, OC9, IC6 OC5P MWR CN13R D4 PWM 5, PMWROC5 IC5CN13R D4 PWM 5, SSOC1B PCINT2PB2 PWM, Other product and company names mentioned may be trademarks of their respective owners. Page 4 of 10

5 Reference Manual Screen # JB10 37 EBICS0 SCL2R A2 ETXCLK PMD15 CN16R D7 CN16RD7 NA NA Header JC Screen # JC1 10 (SS) RGP9R G9, SPI_SS2, PWM 5, OC9, IC6 OC5PMW R CN13RD4 PWM 5 (JPR to digital pin 10 position) PMWROC5 IC5CN13R D4 PWM 5 (JPR to digital pin 10 position) SSOC1B PCINT2PB2 SS, PWM, JC2 11 (MOSI) RPD11 RD11, SPI_SDO2 SDI2 PWM 6, OC7 SCL4SDO 2 U3TXPM A3 CN10RG8 MOSI2, U3TX,, SCL4 (SDO2PMA 3 CN10RG8) or (SDI2PMA5 CN9RG7) MOSI2,, MISO2 MOSIOC2A PCINT3PB3 MOSI, PWM, JC3 12 (MISO) RPF0P MD11 RF0, SPI_SDI2 SDO2, T5CK(+) SDA4SDI2 U3RXPM A4 CN9RG7 MISO2, U3RX, SDA4, (SDI2PMA5 CN9RG7) or (SDO2PMA 3 CN10RG8) MISO2, or MOSI2 MISOPCINT4 PB4 MISO, JC4 13 (SCK) AN14C 1IND ECOLR PG6 SCK2R G6, SPI_SCK2, USER LED1 SCK2U6T X U3RTSP MA5 CN8RG6 SCK2,, User LED LD6 SCK2PMA5 CN8RG6 SCK2, SCKPCINT5P B5 SCK, JC7 2 AN25A ERXD0 RPE8R E8, IC1, INT1 AERXD0I NT1RE8, INT IC1RTCC INT1RD8 IC1, Real- Time Clock Alarm Output, INT, PCINT18INT0 PD2 INT, JC8 A7 AN2C2 INB RPB2R B2 AIN7, AN5C1IN + VBUSON CN7RB5 AIN7, P32_VBUS ON, C1IN+AN5 CN7RB5 AN5, NA NA JC9 A1 EBIA7A N49 RPB9P MA7R B9 AIN1, AN4C1IN- CN6RB4 AIN1, C1IN-AN4 CN6RB4 AN4, ADC1PCINT9 PC1 ADC1, JC10 A6 AN3C2 INA RPB3R B3 AIN6, AN3C2IN + CN5RB3 AIN6, C2IN+AN3 CN5RB3 AN3, NA NA Other product and company names mentioned may be trademarks of their respective owners. Page 5 of 10

6 Reference Manual Header JD JD1 A2 EBIA12 AN21 RPC2P MA12 RC2 JD2 40 AN33R PD15 SCK6R D15 JD3 39 AN32R PD14R D14 JD4 A5 AN12R PG8 SCL4P MA3R G8 JD7 A VREF+ CVREF+ AN28R A10 JD8 41 VREF- CVREF- AN27R A9 JD9 3 RPD0R TCC INT0R D0 JD10 5 RPD1S CK1RD 1 AIN2,, U1TX, U1RX AIN5, SCL4, VREF+, VREF-, PWM 1, INT0, OC1, PWM 2, OC2, AN8C1O UTRB8 SCK3U4 TX U1RTSC N21RD1 5 SS3U4R X U1CTSC N20RD1 4 AN11P MA12R B11 Vref+CV ref+ PMA6R A10 Vref- CVref- PMA7R A9 SDO1OC 1 INT0RD 0 OC2RD1 AIN2,, U4TX, U4RX AIN5, VREF+,, VREF- PWM 1, PWM2, U2CTSC 1OUT AN8RB8 PMA8U2 TX SCL2CN1 8RF5 PMA9U2 RX SDA2CN 17RF4 PMALHP MA1 U2RTSA N14RB1 4 PGED1P MA6 AN0VRE F+ CVREF+C N2RB0 PGC1AN 1 VREF- CVREF- CN3RB1 U2CTS, AIN2, U2TX, SCL2, U2RX, SDA2, U2RTS, AIN5, ADC2PCINT10 PC2 NA NA ADC5SCL PCINT13PC5 ADC2, NA NA ADC5, SCL, Vref+, AREF analog reference Vref-, NA NA OC1RD0 PWM, PCINT19OC2B INT1PD3 OC2RD1 PWM, PCINT21OC0B T1PD5 *Header JD does not directly support any s with single row based Arduino header style boards INT, PWM, PWM, Header JE JE1 A0 AN45C 1INA RPB5R B5 AIN0, AN2C2I N- CN4RB2 AIN0, C2IN-AN2 SS1CN4RB 2 AIN0, ADC0PCINT 8PC0 ADC0, JE2 6 EBID14 ETXEN RPD2P MD14 RD2 PWM, OC3RD2 PWM, OC3RD2 PWM, PCINT22OC 0A AIN0PD6 PWM, AIN0, Other product and company names mentioned may be trademarks of their respective owners. Page 6 of 10

7 Reference Manual JE3 8 AETXCL KRPA1 4 SCL1R A14 JE4 A8 AN4C1 INBRB 4 JE7 A4 AN13C 1INC RPG7 SDA4 PMA4 RG7 JE8 9 EBID15 ETXCLK RPD3P MD15 RD3 JE9 35 EBIA6A N22 RPC1P MA6R C1 JE10 A10 AN48R PB8 PMA10 RB8, IC3, INT3 AIN8, AIN4, PWM,, T2CK, IC7 AIN10, AETXCLK SCL1 INT3RA 14 AN9C2O UTRB9 AN10CV refout PMA13 RB10 OC4RD3 IC4PMC S1 PMA14 RD11 AN14P MA1RB 14, INT (shared with P32_USBO C) AIN8, AIN4, PWM, AIN10, IC3PMCS2 PMA15INT 3RD10 PMA7C2O UT AN9RB9 TCKPMA11 AN12RB12 INT3, PCINT0CLK0 ICP1PB0 AIN8, NA NA AIN4, ADC4SDA PCINT12PC4 OC4RD3 PWM, OC1APCINT 1PB1 IC4PMCS1 PMA14INT 4RD11 TDIPMA10 AN13RB13 NA NA AIN10, NA NA *Header JE does not directly support any s with single row based Arduino header style boards ADC4, SDA, PWM, Header J1 8 JE3 RPA14SCL1RA14 SCL1INT3RA14 IC3PMCS2PMA15INT3R D10 34 JB8 SQICS1RPD5RD5 PMRDCN14RD5 PMRDCN14RD5 9 JE8 RPD3PMD15RD3 OC4RD3 OC4RD3 35 JE9 EBIA6AN22RPC1PMA6 RC1 10 JB9 EBIA2AN11RPG9PMA 2RG9 36 JB7 EBID10RPF1PMD10RF 1 IC4PMCS1PMA14RD 11 OC5PMWRCN13RD4 ETXENPMD14CN15R D6 11 (MOSI) JC2 RPD11RD11 SCL4SDO2U3TXPMA 3CN10RG8 37 JB10 EBICS0SCL2RA2 ETXCLKPMD15CN16R D7 12 (MISO) JC3 RPF0PMD11RF0 SDA4SDI2U3RXPMA4 CN9RG7 IC4PMCS1PMA14INT4R D11 PMWROC5IC5CN13RD4 CN15RD6 (SDO2PMA3CN10RG8) or (SDI2PMA5CN9RG7) CN16RD7 (SDI2PMA5CN9RG7) or (SDO2PMA3CN10RG8) Other product and company names mentioned may be trademarks of their respective owners. Page 7 of 10

8 Reference Manual 38 JB4 RPD12PMD12RD12 T5CKSDI1RC4 U1RTSBCLK1SCK1INT0RF 6 12 (SCK) JC4 AN14C1INDECOLRPG6 SCK2RG6 SCK2U6TXU3RTSPMA 5CN8RG6 39 JD3 AN32RPD14RD14 SS3U4RXU1CTSCN20 RD14 G GND GND GND 40 JD2 AN33RPD15SCK6RD15 SCK3U4TXU1RTSCN2 1RD15 A JD7 VREF+CVREF+AN28RA 10 Vref+CVref+AERXD3P MA6RA10 41 JD8 VREF-CVREF-AN27RA9 Vref-CVref- AERXD2PMA7RA9 SCK2PMA5CN8RG6 PMA9U2RXSDA2CN17RF 4 PMA8U2TXSCL2CN18RF 5 PGED1PMA6AN0VREF+C VREF+CN2RB0 PGC1AN1VREF-CVREF- CN3RB1 Header J2 Screen Number SCL AN12RPG8SCL4PMA3RG8 SCL2RA2 SCL1RG2 SDA AN13RPG7SDA4PMA4RG7 SDA2RA3 SDA1RG3 GND GND GND GND VCC VCC VCC VCC Header J3 Screen Number 0 JB3 RPF2SDA3RF2 SDA3SDI3U1RXRF2 U1RXSDI1RF2 26 JA1 EBID0PMD0RE0 PMD0RE0 PMD0RE0 1 JB2 RPF8SCL3RF8 SCL3SDO3U1TXRF8 U1TXSDO1RF3 27 JA2 EBID1PMD1RE1 PMD1RE1 PMD1RE1 2 JC7 AN25RPE8RE8 INT1RE8 IC1RTCCINT1RD8 28 JA3 EBID2PMD2RE2 PMD2RE2 PMD2RE2 3 JD9 RPD0RTCCINT0RD0 SDO1OC1INT0RD0 OC1RD0 29 JA4 EBID3RPE3PMD3RE3 PMD3RE3 PMD3RE3 4 EBIRDY1SDA2RA3 ETXD0PMD10RF1 RF1 30 JA7 EBID4AN18PMD4RE4 PMD4RE4 PMD4RE4 5 JD10 RPD1SCK1RD1 OC2RD1 OC2RD1 31 JA8 EBID5AN17RPE5PMD5RE5 PMD5RE5 PMD5RE5 6 JE2 RPD2PMD14RD2 OC3RD2 OC3RD2 32 JA9 EBID6AN16PMD6RE6 PMD6RE6 PMD6RE6 7 JB1 AN26RPE9RE9 INT2RE9 IC2U1CTSINT2RD9 33 JA10 EBID7AN15PMD7RE7 PMD7RE7 PMD7RE7 Other product and company names mentioned may be trademarks of their respective owners. Page 8 of 10

9 Reference Manual Header J4 Screen Number A0 JE1 AN45C1INARPB5RB5 AN2C2IN-CN4RB2 C2IN-AN2SS1CN4RB2 A6 JC10 AN3C2INARPB3RB3 AN3C2IN+CN5RB3 C2IN+AN3CN5RB3 A1 JC9 EBIA7AN49RPB9PMA7 AN4C1IN-CN6RB4 C1IN-AN4CN6RB4 RB9 A7 JC8 AN2C2INBRPB2RB2 AN5C1IN+VBUSONC C1IN+AN5CN7RB5 N7RB5 A2 JD1 EBIA12AN21RPC2PMA AN8C1OUTRB8 U2CTSC1OUTAN8RB8 12RC2 A8 JE4 AN4C1INBRB4 AN9C2OUTRB9 PMA7C2OUTAN9RB9 A3 EBIA0AN10RPB15OCF BPMA0RB15 PGED1AN0CN2RB0 TMSCVREFOUTPMA13 AN10RB10 A9 PGEC1AN1RPB1RB1 PGEC1AN1CN3RB1 TDOPMA12AN11RB11 A4 JE7 EBIA4AN13RPG7SDA4 AN10CVrefoutPMA1 TCKPMA11AN12RB12 PMA4RG7 3RB10 A10 JE10 AN48RPB8PMA10RB8 AN14PMA1RB14 TDIPMA10AN13RB13 A5 JD4 EBIA3AN12RPG8SCL4 PMA3RG8 AN11PMA12RB11 A11 PGED1AN0RPB0RB0 AN15PMALLPMA0C N12RB15 PMALHPMA1U2RTSAN 14RB14 PMALLPMA0AN15OCF BCN12RB15 Header J5 Not Connected J5-1 IOREF J V 3.3 V 3.3 V RST J5-3 P32_RST P32_RST P32_RST 3v3 J V 3.3 V 3.3 V 5V0 J V 5.0 V 5.0 V GND J5-6 GND GND GND GND J5-7 GND GND GND VIN J5-8 VIN VIN VEXT Header J6 MISO J6-1 (JC3) RPF0PMD11RF0 SDA4SDI2U3RXPMA4 CN9RG7 J6-2 SCK J6-4 (JC4) AN14C1INDECOLRPG 6SCK2RG6 SCK2U6TXU3RTSPM A5CN8RG6 (SDI2PMA5CN9RG7) or (SDO2PMA3CN10RG8) SCK2PMA5CN8RG6 Other product and company names mentioned may be trademarks of their respective owners. Page 9 of 10

10 Reference Manual MOSI J6-3 (JC2) RPD11RD11 SCL4SDO2U3TXPMA 3CN10RG8 SS J6-5 (JB9) EBIA2AN11RPG9PMA OC5PMWRCN13RD4 2RG9 GND J6-6 GND GND GND (SDO2PMA3CN10RG8) or (SDI2PMA5CN9RG7) PMWROC5IC5CN13RD 4 Header J7 Screen Number SCL AN12RPG8SCL4PMA3RG8 SCL2RA2 SCL1RG2 SDA AN13RPG7SDA4PMA4RG7 SDA2RA3 SDA1RG3 Other product and company names mentioned may be trademarks of their respective owners. Page 10 of 10