ESPRESSObin U
ltra
- Quick Start Guide
page:
7
/
24
7
/
24
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