SMARC sXAL User Guide. Rev. 1.0
www.kontron.com
// 19
6/
Pin Definitions
The following sections provide pin definitions and detailed description of all on-board connectors.
The connector definitions follow the following notation:
Table 4: Connector Definitions
Column Name
Description
Pin
Shows the pin-numbers in the connector. The graphical layout of the connector definition
tables is made similar to the physical connectors.
Signal
The mnemonic name of the signal at the current pin.
The notation “XX#” states that the signal “XX” is active low.
Type
AI:
Analog Input
AO:
Analog Output
I:
Input, TTL compatible if nothing else stated
IO:
Input / Output, TTL compatible if nothing else stated
IOT:
Bi-directional tristate IO pin.
IS:
Schmitt-trigger input, TTL compatible.
IOC:
Input / open-collector Output, TTL compatible
IOD:
Input / Output, CMOS level Schmitt-triggered (Open drain output)
NC:
Not Connected
O:
Output, TTL compatible
OC:
Output, open-collector or open-drain, TTL compatible
OT:
Output with tri-state capability, TTL compatible
LVDS: Low Voltage Differential Signal
PWR: Power supply or ground reference pins.
Ioh:
Typical current in mA flowing out of an output pin through a grounded load,
while the output voltage is > 2.4 V DC (if nothing else stated).
Iol:
Typical current in mA flowing into an output pin from a VCC connected load,
while the output voltage is < 0.4 V DC (if nothing else stated).
Pull U/D
On-board pull-up or pull-down resistors on input pins or open-collector output pins.
Note
Special remarks concerning the signal
Designation
Type and number of item described
