ODIN-W2 series - System Integration Manual
UBX-14040040 - R03
Advance Information
System description
Page 8 of 33
Function
No
Name
I/O
Description
Remarks
GND N/A
Ground
All GND pads must be
connected to ground.
System
IO
A1
RESET_N
I
External reset input.
Internal active pull-up to V_INT.
A7
RED
O
Logic Red LED Signal.
Active low.
A8
GREEN/SWITCH_1 O/I
Logic Green LED Signal.
System Input Signal
Active low.
The GREEN signal is not valid until 500ms after
startup.
If the level on this pin is pulled-down during start-up
the unit goes back to default serial settings. The
SWITCH_1 input is only active during the first 500ms
after startup.
The module will revert to factory settings if both the
SWITCH_1 and SWITCH_0 signals are low during start
up.
A9
BLUE
O
Logic Blue LED Signal.
Active low.
A6
SWITCH_0
I
System Input Signal
Active low. The module will revert to factory settings
if both the SWITCH_1 and SWITCH_0 signals are low
during startup.
Clock
C16
LPO_CLK
I
Low Power Oscillator clock
input
The modules require an external 32.768 kHz clock for
low power modes. Should be left unconnected if not
used.
UART
A13
UART_RXD
I
UART Receive.
A11
UART_TXD
O
UART Transmit.
A12
UART_RTS
O
UART Request To Send,
Hardware flow control.
Active low.
A10
UART_CTS
I
UART Clear To Send,
Hardware flow control.
Active low.
A5
UART_DTR
O
UART Data Terminal Ready
System Output Signal
Active low.
Is used as a System IO
A18
UART_DSR
I
UART Data Set Ready.
Active low. Can also be used as a System IO.
RMII
C14
RMII_MDC
O
Management data clock
line
C15
RMII_MDIO
I/O
Management data I/O line
D1
RMII_TXD0
O
RMII Transmit 0
D2
RMII_TXD1
O
RMII Transmit 1
D3
RMII_TX-EN
O
RMII Transmit enable
Active high.
D4
RMII_CRS-DV
I
Carrier Sense/Receive Data
Valid input
Carrier Sense and Receive Data Valid signals are
multiplexed together, multiplexing scheme varies with
implementation.
D5
RMII_RXD0
I
RMII Receive 0
D6
RMII_RXD1
I
RMII Receive 1
D8
RMII_REF-CLK
I
RMII Reference clock input
Continuous 50 MHz reference clock input.
RSVD
RSVD
N/A
Reserved pin.
All RSVD should be left unconnected
Table 2: ODIN-W2 pin description
