J1 |
VBUCK1_EXT |
Filtered BUCK1 output connector |
Not applicable |
J2 |
VBUCK2_EXT |
Filtered BUCK2 output connector |
Not applicable |
J3 |
VBOOST_EXT |
Filtered BOOST output connector |
Not applicable |
J4 |
VBAT |
VBAT supply and PGND connector |
Not applicable |
J5 |
VSUP |
Input supply for BUCK2 and BOOST coming from VBUCK1 |
Jumpers between J5_1_2 and J5_3_4 for the BUCK2 supply
Jumpers between J5_7_8 and J5_9_10 for the BOOST supply |
J6 |
VIO |
IO supply for SPI |
Jumper between J6_7_8 (+5V_EXT) from the USB interface |
J7 |
NRES |
System reset output |
Jumper between J7_1_2 |
J8 |
ENDRV |
Enable drive output |
Jumper between J8_1_2 |
J9 |
DIAGOUT |
Diagnostic output |
Jumper between J9_2_3 |
J10 |
SYNC_IN |
PLL input clock. The onboard 2.3-MHz clock generated using the LMC555 timer can be used to sync the device this external clock |
Jumper between J10_2_3 |
J11 |
MCUERR |
MCU error pin monitor |
Jumper between J11_2_3 |
J12 |
CSN |
SPI: Chip select input |
Use jumper between J10_1_2 |
J13 |
EXT_SENSE1 |
External general-purpose voltage monitor input 1 |
Jumper between J13_1_2 |
J14 |
EXT_SENSE2 |
External general-purpose voltage monitor input 2 |
Jumper between J14_1_2 |
J15 |
EXTSUP |
External supply for VREG |
Jumper between J13_1_2 for connecting the BOOST pin to the EXTSUP pin |
J16 |
SCLK |
SPI: Clock input |
Jumper between J14_1_2 |
J17 |
SDO |
SPI: SPI Slave data output (push-pull output) |
Jumper between J15_1_2 |
J18 |
SDI |
SPI: SPI Slave data input |
Jumper between J16_1_2 |
J19 |
J17 |
Not applicable |
Not applicable |
J20 |
J20 |
Wake input options:
J20_1_2: WAKE from VBAT through S2 switch
J20_2_3: WAKE from USB |
Jumper between J20_1_2: WAKE from VBAT through S2 |
J21 |
VBAT_INT |
Supply for WAKE from USB circuit |
Jumper between J21_1_2 |
J22 |
J22 |
Supply for external clock generator circuit |
Jumper between J22_1_2 |
J23 |
CLK_WD |
External clock generator circuit frequency setting |
Not applicable |
J24 |
J24 |
Not applicable |
Not applicable |
J25 |
PUR VUSB |
Not applicable |
No jumper, keep this pin open |
J26 |
J26 |
USB port |
Connect this port to USB port of the PC |
J27 |
J27 |
Device configuration change control signal 1 |
Jumper between J27_1_2. This jumper is needed only for changing device configuration. |
J28 |
J28 |
Device configuration change control signal 2 |
Jumper between J28_1_2. This jumper is needed only for changing device configuration. |
J29 |
J29 |
Not applicable |
Not applicable |