Datasheet
Maxim Integrated
│
5
www.maximintegrated.com
MAXQ610 Evaluation Kit
Evaluates: MAXQ610
User Input Pushbuttons
The MAXQ610 EV kit board provides eight momentary
contact switches intended for user input. Each switch
is connected to a separate port pin on the MAXQ610’s
port 1 (P1.7–P1.0) as illustrated in Table 2. The other
side of each switch is connected to ground. Therefore, by
using the weak pullup capability of the port pins, switch
closure can be detected by reading a low on the normally
high corresponding port pin.
Table 1. Jumper Functions (continued)
Table 2. Switch Input Connections
*Default setting.
JUMPER SETTING EFFECT
JH18
Open*
Connects pin 2 (INVALID) of the RS-232 level translator U1 to the MAXQ610’s pin 27 (P3.4).
Closed
Disconnects pin 2 (INVALID) of the RS-232 level translator U1 from the MAXQ610’s pin 27 (P3.4).
JH20
Open
Disconnects pin 9 (R1OUT) of the RS-232 level translator U1 from the MAXQ610’s pin 3
(RX0, P0.1).
Closed* Connects pin 9 (R1OUT) of the RS-232 level translator U1 to the MAXQ610’s pin 3 (RX0, P0.1).
JH21
Open
Disconnects pin 10 (R2OUT) of the RS-232 level translator U1 from the MAXQ610’s pin 6
(RX1, P0.3).
Closed* Connects pin 10 (R2OUT) of the RS-232 level translator U1 to the MAXQ610’s pin 6 (RX1, P0.3).
JH22
Open Disconnects the board’s DS1 LED cathode from the MAXQ610’s pin 2 (P3.0).
Closed* Connects the board’s DS1 LED cathode to the MAXQ610’s pin 2 P3.0.
JH23
Open Disconnects the board’s DS2 LED cathode from the MAXQ610’s pin 4 (P3.1).
Closed* Connects the board’s DS2 LED cathode to the MAXQ610’s pin 4 (P3.1).
JH24
Open Disconnects the board’s DS3 LED cathode from the MAXQ610’s pin 15 (P3.2).
Closed* Connects the board’s DS3 LED cathode to the MAXQ610’s pin 15 (P3.2).
JH25
Open Disconnects the board’s DS4 LED cathode from the MAXQ610’s pin 16 (P3.3).
Closed* Connects the board’s DS4 LED cathode to the MAXQ610’s pin 16 (P3.3).
JH26
Open Disconnects the board’s V50 source from pin 8 of the JTAG connector (VCC5).
Closed*
Connects the board’s V50 source to pin 8 of the JTAG connector (VCC5) allowing the JTAG
connection to source the 5V power.
PORT PIN SWITCH
P1.0 SW2
P1.1 SW3
P1.2 SW4
P1.3 SW5
P1.4 SW6
P1.5 SW7
P1.6 SW8
P1.7 SW9