Avnet MicroZed - MicroZed IOCC Introduction

30-Oct-2020, Rev. 1.1
2
1 Introduction
The MicroZed I/O Carrier Card (IOCC) is a low cost evaluation board for the MicroZed
series System On Module (SOM) boards. The function of this board is to provide SoC
I/O pin accessibility to the MicroZed SOM board through the 12 PMOD connectors. In
addition to SoC I/O pin access through the PMOD connectors, the IOCC also provides
SOM board power via the JX MicroHeaders. Please refer to the MicroZed Hardware
User’s guide for the MicroZed’s feature set. The features provided by the IOCC consist
of:
• Interfaces
o Xilinx PC4 Header for programming
 Accesses PL JTAG
o 12 Digilent Pmod™ compatible interfaces
 One connected to PS MIO
 Two connected to Bank 13 PL (MicroZed with Zynq 7Z020 only)
 Five connected to Bank 34 PL
 Four connected to Bank 35 PL
o Two 100-pin MicroHeaders
o Reset Push Button
o 4 User Push Buttons
o 2 Configuration Push Buttons
o 8 User LEDs
o 4 User DIP Switches
o 2 Status LEDs
o Xilinx XADC Header
• On-board Oscillator:
o 100MHz single ended with FPGA control
• On-board Memory:
o Optional footprint: 1KB 1-wire SHA Security EEPROM (not populated)
• Power
o Internal
 Filtered Vin for XADC (5V only).
 85%+ high-efficiency regulators for 1.8V/2.5V/3.3V @ 2.3A
• For Module VCC
IO
Bank_34
 85%+ high-efficiency regulators for 1.8V/2.5V/3.3V @ 2.85A
• For Module VCC
IO
Bank_35 and Bank 13 (7Z020 only)
 Low Noise LDO 1.8V @ 0.15A supply for XADC
 0.2% accurate 1.25V @ 0.05A precision reference for XADC
o External
 Primary 5V ≥ 2.0 A