Pico Computing E-102 Quick user guide

E-102
Hardware Reference Manual
www.picocomputing.com Pico Computing
E-102 Hardware Reference Manual 150 Nickerson treet. uite 311
[phone] eattle, WA 98109

Table of Contents
Table of Contents ......................................................................................................................................................................................... 2
Theory of Operation .................................................................................................................................................................................... 3
Specifications ............................................................................................................................................................................................... 3
XC7Z020-CLG4 4C Programmable SoC (Engineering Silicon) ........................................................................................................ 3
DDR3 DRAM ...................................................................................................................................................................................... 3
USB OTG ............................................................................................................................................................................................. 3
USB UART .......................................................................................................................................................................................... 3
HDMI Output ....................................................................................................................................................................................... 3
MicroSD Card ...................................................................................................................................................................................... 3
33 Zynq MIO GPIO ............................................................................................................................................................................. 4
150 Zynq SelectIO GPIO .................................................................................................................................................................... 4
DONE, INIT, and GPIO status LEDs ................................................................................................................................................. 4
Mechanical and Environmental .......................................................................................................................................................... 4
System Monitoring .............................................................................................................................................................................. 4
Included with E-102 ............................................................................................................................................................................ 4
Board Overview ........................................................................................................................................................................................... 5
E-102 Block Diagram .................................................................................................................................................................................. 6
Mechanical ................................................................................................................................................................................................... 7
Status LED Description ...............................................................................................................................................................................
Clock Circuitry ............................................................................................................................................................................................. 9
PS_CLK ............................................................................................................................................................................................... 9
SYS_CLK ............................................................................................................................................................................................ 9
GPIO Header Pin Locations ....................................................................................................................................................................... 10
Power ........................................................................................................................................................................................................ 32
GPIO connectors (J5 & J ) ................................................................................................................................................................ 32
USB-OTG Receptacle (J7) ................................................................................................................................................................ 32
USB-UART Receptacle (J4) ............................................................................................................................................................. 32
Errata .......................................................................................................................................................................................................... 32
Board Revision History ............................................................................................................................................................................. 32
Document Revision History ....................................................................................................................................................................... 32
Legal Notices ............................................................................................................................................................................................. 33
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Theory of Operation
The purpose of this document is to familiarize you with the E-102 hardware.
The E-102 features a Xilinx Zynq Z-7020 System-on-a-Chip. It is to designed to be a flexible solution in
multiple applications. It can run as an embedded module with a large amount of user I/O, in a standalone
application, or as a USB peripheral device.
Specifications
XC7Z020-CLG484C Programmable SoC (Engineering Silicon)
- 5K Logic Cells
- Dual core ARM Cortex-A9 MPCores up to 667 MHz (-1 speed grade)
- Commercial Temperature grade (0°C to + 5°C)
DDR3 DR M
- 512 MB total density
- 32 bit data bus
- Up to 533 MHz DDR
- 3.97 GB/s total DDR3 bandwidth
USB OTG
- Supports either host or peripheral operation through USB Micro-AB receptacle
- Access to onboard ARM processors through Zynq MIO
USB U RT
- Supports UART connection through USB Micro-B receptacle
- Access to onboard ARM processors through Zynq MIO
HDMI Output
- Output up to 10 0P 24-bit color video through HDMI-Micro (Type-D) receptacle
MicroSD Card
- Boot from MicroSD or MicroSDHC card through Zynq MIO
- A 4GB Class 4 MicroSD card is included
33 Zynq MIO GPIO
- Accessed through Samtec QSH-030-01-L-D-A
⋅Mating Part: QTH-030-02-L-D-A
- 1. V operation
150 Zynq SelectIO GPIO
- Accessed through Samtec QSH-090-01-L-D-A
⋅Mating Part: QTH-090-02-L-D-A
- 3 separate GPIO banks with 2 separate programmable voltage rails
⋅3 pin Voltage ID programming available through hardware or from FPGA
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⋅GPIO Voltage rails available to mating card for up to 1A current draw
DONE, INIT, and GPIO status LEDs
- See “Status LED Description” section for more details
Mechanical and Environmental
- Board Dimensions: 50mm x 0mm
- Commercial Temperature rating
System Monitoring
- Die temperature monitoring
- VCCINT and VCCAUX Voltage monitoring
Included with E-102
- 4GB Class 4 MicroSD card
- MicroSD to full size SD adapter
- USB A Male to Micro-B Male Cable
- JTAG Cable Adapter
Please use anti-static handling precautions when handling the board.
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Board Overview
Figure –Top and Bottom of E-102
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E-102 Block Diagram
Figure – Functional Block Diagram
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Mechanical
The E-102 is 50mm x 0mm
It has 1 mounting hole in each of the 4 corners that will fit either a standard #4 screw or a metric M3 screw.
It can mate to a carrier board using Samtec Q-Series I/O connectors (see 33 Zynq MIO GPIO and “150 Zynq SelectIO
GPIO” for mating parts)
Figure – Mechanical drawing - View from top of E-102
Configuration
The Zynq boots through the MicroSD slot. See Firmware and Software docs for more details.
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60mm

Status LED Description
The E-102 utilizes LEDs in order to provide status feedback. The DONE and INIT pins drive the 2 right-most
LEDs in the Figure below. There are also 2 LEDs that are driven by pins on the FPGA and can be used to
indicate statuses chosen by the user.
Figure – Status LEDs
E-102 Hardware Reference Manual www.picocomputing.com

Clock Circuitry
The Zynq on the E-102 has 2 separate clock inputs.
PS_CLK
-PS_CLK is driven by a 33.33 MHz oscillator.
-The Zynq uses this clock to generate all of the appropriate clocks for the ARM and Memory.
-This clock can also be used to generate a logic clock.
SYS_CLK
-SYS_CLK is driven by a 200 MHz low-jitter differential oscillator.
-This clock drives a Multi-Region-Clock-Capable input in the FPGA’s SelectIO.
-SYS_CLK_P and SYS_CLK_N are on FPGA balls Y6 and Y5 respectively.
-
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GPIO Header Pin Locations
Figure - GPIO connector, view from top, through board
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