User Manual

Hardware Interfaces
Hardware Overview 17
amp per pin rating. which mates with Molex housing p/n 51021-1500 with crimps p/n
63811-0300. See Cables and Connectors
for more information on typical cable parts.
Control Signal Specification
TTL Level UART Interface
The module communicates to a host processor via a TTL logic level UART serial port or
via a USB port. Both ports are accessed on the 15-pin Digital/Power Connector
. The TTL
logic level UART supports complete functionality. The USB port supports complete
functionality except the lowest power operational mode.
Note
Power Consumption specifications apply to control via the TTL UART.
M6e Digital Connector Signal Definition
Molex
53261-1571
Pin Number
Signal
Signal
Direction
(In/Out of M6e)
Notes
1 GND P/S Return Must connect both GND pins to ground
2 GND P/S Return
3 +5VDC P/S Input Must connect both 5V supplies
4 +5 VDC P/S Input
5 GPIO1 Bi-directional Input 5VDC tolerant, 16mA Source/Sink
6 GPIO2 Bi-directional
7 GPIO3 Bi-directional
8 GPIO4 Bi-directional
9 UART_RX_TTL In In + 10k Ohm to Ground
10 UART_TX_TTL Out Out
11 USB_DM Bi-directional USB Data (D-) signal
12 USB_DP Bi-directional USB Data (D+) signal
13 USB_5VSENSE In Input 5V to tell module to talk on USB
14 SHUTDOWN In Disable all 5V Inputs
15 RESET Bi-directional
HIGH output indicates
Boot Loader is running
LOW output indicates
Application Firmware is
running
Note: Not 5V tolerant.