Quick Start Guide

ESPRESSObin Ultra- Quick Start Guide page: 7 / 24
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4. Bottom Side connectors and parts
Number Part location Name
1 U3 SDRAM Rank1 16bit DDR4 (1GB)
2 U11 eMMC 8GB-8bit
3 C166 +1.2V (+DDR_VCC) power rail 5
th
power stage
4 C175 +1.1V (CPU_VCore)power rail 7
th
power stage
5 C172 +1.8V power rail 3
rd
power stage
6 D18 +12V POE output diode Pin1/pin2 in, pin3 out to +12V power rail
7 EC1 +12V power rail 1
st
power stage (input)
8 EC2 +5V power rail 1
st
power stage (output)
9 EC4 +3.3V power rail 2
nd
power stage
10 D17 +12V DC power input diode Pin1/pin2 in, pin3 out to +12V power rail
11 U46 Gb Ethernet PHY Connected to J17
12 C178 +1.5V power rail 4
th
power stage
13 C213 +1.15V power rail 6
th
power stage
14 SW1 Reset switch Press down to pull low MRn
15 R116
MRn
Low active master reset signal to CPU’s
SYSRSTn
16 J5 Micro-USB for console UART1
17 U10 SPI NOR Flash Boot ROM 4MB
18 U35 UART to USB bridge
19 U1 Marvell A3720 SoC