BM70 PICtail
TM
/PICtail Plus EVB User’s Guide
DS70005235C-Page 18
2015-2016 Microchip Technology Inc.
2.1.3
Switches
Push button switches provide the following functionality:
• SW1, SW2, SW3 and SW4 – Test buttons, available for evaluation and are
connected to the corresponding header pins
• SW5 – Reset button, connects to the Reset pin (pin 21) of the module
• SW6 – Power switch button, includes Push-High and Push-Low header
• SW7 – DIP switch to switch between Application and Test modes
• SW8 – USB Reset button
2.1.4
LEDs
The functionality of the six LEDs are as follows:
• LED1 – Connected to the P0_2 pin (pin 30) of the BM70 module, which provides
the module status
• LED2, LED3, LED4 and LED5 – Configurable test LEDs for diagnostics. These
LEDs have header connections which can be connected for testing
• LED6 – USB connection indicator. This LED will turn ON when USB 5V input is
connected
2.1.5
Jumpers
There are 12 jumpers (J1, J2, J3, J4, J5, J10, JP6, JP7, JP8, JP10, JP12 and JP13)
available on the BM70 EVB.
Table 2-1
through
Table 2-12
provide the details of the
pins and signals that are associated with the jumpers.
TABLE 2-1:
POWER SOURCE OPTION CONNECTOR
Part
Number
Pin
Signal Description
J1
1
PIC_3V3
Power source from PICtail 3.3V, enabled by pin 2 in
the jumper bank J1
2
V
BAT
BM70 power source input
3
USB_3V3
Power source from USB enabled by pin 4 on the
jumper bank J1. The power input is sent to 3.3V LDO
to provide the module with a 3.3V input
4
V
BAT
BM70 power source input
5
BAT
Power source from Coin Cell Battery, enabled by pin
6 on the jumper bank J1
6
V
BAT
BM70 power source input
TABLE 2-2:
GROUND TEST CONNECTOR
Part
Number
Pin
Signal Description
J2
1 to 8
GND
Ground test pins
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