Version 1.1
4 ARCHITECTURE
4.1
BLOCK DIAGRAM
Block diagram of the device is shown in figure below:
Illustration 4.1: Block diagram
Design of the PastLS1 is very straightforward and requires little explanation. Pinouts of the interfaces'
connectors are provided in chapter 4. Everything apart from USB and UART is connected straightforward
between Qseven module and I/O connectors. USB and UART have more options.
Qseven module RakunLS1 has multiplexed I/O pins. This means several interfaces are available on the
same pins. Consequently, several interfaces are available on GPIO1/EC3, GPIO2/EC2 and QE connectors.
For details, see chapter 6.
4.2
USB CONNECTION
USB connection is shown in figure below.
PastLS1 Qseven carrier board for Rakun LS1
GPIO 1
G
P
I
O
,
R
G
M
I
I
,
M
D
I
O
,
I2C, PWM, CAN, USB2
Extension connector
GPIO 2
GPIO, RGMII, MDIO,
I2C, PWM, IEEE1588
Extension Connector
MikroBus
SPI, I2C, UART4
Extension Connector
QuiccEngine
Extension connector
USB
FT230X
FTDI
USB ctrl
LM3525M
TI
LAN
RJ45
Socket
EthMag
H5004NL
Pulse
GPIO LEDs
S
e
r
D
e
s
3
AUX
SATA Connector
SerDes 2
AUX
SATA Connector
Qseven
CPU Module
HDMI
SATA0
PCIE0
UCC1
UCC3
UART4
SDHC
SPI
I2C1
EC2
GPIO
USB-
CTRL
ETH (EC3)
MII-M
USB1
Mini-PCIe
Slot 0
[PCIe 1x + USB]
MicroSD
Card
Socket
USB_K
Socket
Mini A
USB1 2.0 OTG
Socket
Type A
SATA
Connector
USB1 3.0
Socket
Mini A
HDMI
Socket
SerDes 1
AUX
SATA Connector
UART
UART1, UART2,
UART3, UART4
Extension connector
EC3
GPIO
UART3
UART2
UART1
PCIE1-3
Power:
+5V 2A Input
+3.3V/2A
TPS562209
+1.5V/0.8A LM1117
Power
Socket
ESD
ESD
E
S
D
E
S
D
Selection
jumpers
S
el
e
ct
io
n
ju
m
p
e
rs
