3: Evaluation Kit
XPort AR Integration Guide
20
Table 3-1. JP1 Connections
JP1 Pin #
Connects To:
1
TXDA
2
RXDA
3
CP01 (RTSA)
4
CP02 (DTRA)
5
CP03 (CTSA)
6
CP04 (DSRA)
7
CP05 (DCDA)
8
CP06 (TXDB)
9
CP07 (RXDB)
10
CP08 (RTSB)
11
CP09 (DTRB)
12
CP10 (CTSB)
13
CP11 (DSRB)
14
CP12 (I2CCLK)
15
CP13 (I2CDTA)
16
____________
RESET
17
Reserved
18
Reserved
JP2: LED Header
This header provides access to each of the monitoring LEDs. These pins can be connected
with a jumper wire to any of the JP1 pins to monitor the signal level with the corresponding
LED. When a high is present, the LED illuminates. Test LEDs by using a jumper to any of
the JP4 pull-up pins. Each LED has a unique color to facilitate identifying the LEDs that are
on.
Table 3-2. JP2 Connections
JP2 Pin #
Connects To:
1
LED1 – green
2
LED2 – yellow
3
LED3 – orange
4
LED4 – red
JP3: Input Switch Header
This header provides access to each of the two input control switches. These pins can be
connected with a jumper wire to any of the JP1 pins to control the signal level with the
corresponding switch. When a switch is in the center position, it is off. This allows a 1K pull-
up resistor to create a high on the corresponding pin. When a switch is turned on, it connects
the corresponding pin to ground. Each switch has a latched-on down position and a
momentary-on up position
