3.5 Jumpers

There are 12 jumpers (J1, J2, J3, J10, JP6, JP7, JP8, JP10, JP12, JP13 and JP14) available on the BM71 EVB. The following tables provide the details of the pins and signals that are associated with the jumpers.
Table 3-1. 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 VBAT BM71 power source input
3 USB_3V3 Power source from USB enabled by pin 4 on the jumper bank J1. 5V USB power sends the power input to 3.3V LDO to provide the module with a 3.3V input
4 VBAT BM71 power source input
5 BAT Power source from coin cell battery (SK1) enabled by pin 6 on the jumper bank J1
6 VBAT BM71 power source input
Table 3-2. Ground Test Connector
Part Number Pin Signal Description
J2 1-8 GND Ground test pins
Table 3-3. USB-TO-UART Interface U10
Part Number Pin Signal Description
J3 1 RTS MCP2200 Request To Send (RTS) pin
2 P0_0

  • BM71 GPIO P0_0 (Pin 11)

  • Configured as Clear To Send (CTS) and connected to J3, pin1 by the jumper
3 CTS MCP2200 CTS pin
4 P3_6
  • BM71 GPIO P3_6 (pin 9)
  • Configured as RTS and connected to J3, pin 3 by the jumper
5 Tx MCP2200 Rx pin
6 HCI_TXD
  • BM71 HCI_TXD (pin 8)
  • Connected to J3, pin 5 by the jumper
7 Rx MCP2200 Tx pin
8 HCI_RXD
  • BM71 HCI_RXD (pin 7)
  • Connected to J3, pin 7 by the jumper
Table 3-4. Serial Flash Interface
Part Number Pin Signal Description
J14 1 GPO USB GPIO0
2 P16 BM71 GPIO P1_6, jumper is connected to GP0 for default Auto Pattern Tool application
3 GP2 USBGPIO2
4 P17 BM71 GPIO P1_7, jumper is connected to GP2 for default Auto Pattern Tool application
5 GP6 USB GPIO6
6 P12 BM71 GPIO P1_2, jumper is connected to GP6 for default Auto Pattern Tool application
7 GP7 USB GPIO7
8 P13 BM71 GPIO P1_3, jumper is connected to GP7 for default Auto Pattern Tool application
Table 3-5. VBAT Test Connector
Part Number Pin Signal Description
J10 1-8 VBAT VBAT test pins
Table 3-6. Connector J10
Part Number Pin Signal Description
JP10 1-8 GP0 to GP7 MCP2200 GPIOs
Table 3-7. Connector JP12
Part Number Pin Signal Description
JP12 1 VBAT VBAT test pin
2 3V3_I2C 3V3 voltage of I2C interface, short to VBAT for voltage supply
Note: Connect the jumper JP12 as a default jumper.
Table 3-8. Connector JP13
Part Number Pin Signal Description
JP13 1 NRST I2C (device) Reset pin, wire connect to the configured GPIO Reset pin
2 NC No connect
Table 3-9. Connector J5
Part Number Pin Signal Description
JP5 1-4 LED2 to LED5 Test LED interface (Pull-Low enable), wire connect to test the GPIO pin
Table 3-10. Connector JP6
Part Number Pin Signal Description
JP6 1 Push-High Latching switch SW6 Push-High test pin, wire connect to test GPIO
2 Push-Low Latching switch SW6 Push-Low test pin, wire connect to test GPIO
Table 3-11. Connector JP7
Part Number Pin Signal Description
JP7 1-4 SW1to SW4 Push-Low test buttons, wire connect to test GPIO
Table 3-12. Connector JP8
Part Number Pin Signal Description
JP8 1 LED Connected to status LED (LED1)
2 VBAT Power source of LED1, short to JP8, pin1 to enable the status LED function