Avila Network Computer Operating Manual
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COM2 Serial Port Header (J6)
The COM2 serial port is available through a 10-pin header in a 2x5 configuration
with 0.1-inch pin spacing. The mating connector is an AMP/Tyco 746288-1,
available from Digi-Key as part number AKN10A-ND. The pin assignment
supports a ribbon cable connection to a standard 9-pin D-shell connector.
Pin
Signal
Pin
Signal
1
No Connect
2
No Connect
3
Transmit Data
4
Clear To Send
5
Receive Data
6
Request To Send
7
No Connect
8
No Connect
9
Ground
10
No Connect
COM2 Serial Port Header
JTAG Port Header (J7)
These JTAG port is available through a 14-pin header in a 2x7 configuration with
0.1-inch pin spacing. The mating connector is an AMP/Tyco 746288-2, available
from Digi-Key as part number AKN14A-ND. The primary purpose for the JTAG
Port is to facilitate program download into Flash memory.
Pin
Signal
Pin
Signal
1
VCC3 Pull Up
2
Ground
3
JTAG RST
4
Ground
5
JTAG TDI
6
Ground
7
JTAG TMS
8
Ground
9
JTAG TCK
10
Ground
11
JTAG TDO
12
Board Reset
13
VCC3 Pull Up
14
Ground
JTAG Port Header
Digital I/O Header (J8)
The digital I/O is available through a 10-pin header in a 2x5 configuration with
0.1-inch pin spacing. The mating connector is an AMP/Tyco 746288-1, available
from Digi-Key as part number AKN10A-ND. Note that GPIO3 is shared with the
status LED as described in Section 2, Digital I/O Mapping.
Pin
Signal
Pin
Signal
1
GPIO0
2
Ground
3
GPIO1
4
Ground
5
GPIO2
6
Ground
7
GPIO3
8
Ground
9
GPIO4
10
Ground
Digital I/O Header
