3.2 Jumper Options
The CEC173x Evaluation Board has a variety of configuration jumpers.
The jumpers and headers have a J reference designator. Several of the jumpers were replaced by a special trace-link PCB structure, in which the default value for the jumper is hardwired into the design. A representative picture of this PCB structure for jumper J23 is shown in the figure below labeled “Trace-Link Jumper”. To change the value of these jumpers, the user must cut the default trace and install a resistor across the alternate connection pads. In the example for J23, the user would cut the trace between pin 1 and 2 and install a zero Ohm 0603 surface mount resistor between pads 2 and 3. Some of the jumpers were replaced with a single 0 Ohm resistor. For these jumpers, the options are either installed (IN) or not installed (OUT). The resistors used in these locations are listed in the Jumper Options Description field below. In other cases, a standard shorting block is required to be placed across jumper pins in the default position for default operation of the device.
- Standard – A standard jumper uses a header and a jumper cap to modify the design.
- 0 Ohm Short – Instead of a selection jumper, one or more zero Ohm jumpers were used to replace the original jumper. The description field indicates what resistors were used to replace the jumper.
- Trace-Link – A PCB structure that shorts through a direct metal link to the default position
- Header – Not a jumper, but a header to interface to the outside world.
- Removed – A jumper that existed in the original EV19K07A board but was removed from the EV42J24A board.
| Jumper | Description | Jumper Type | Description |
|---|---|---|---|
| J1 | Board Power Selection | Standard | 1-2: Power by external 5V Adapter (P1) 2-3 (Default): Power by micro-USB Port (P2, P3) |
| J2 | VTR power to CEC173x | 0 Ohm Short | R163 IN (Default): Connect VTR power OUT: Disconnect VTR power |
| J3 | +3.3V power to MEC1723 | 0 Ohm Short | R166 IN (Default): Connect +3.3V power OUT: Disconnect +3.3V power |
| J4 | VTR_PLL power to CEC173x | 0 Ohm Short | R164 IN (Default): Connect VTR_PLL power OUT: Disconnect VTR_PLL power |
| J5 | +1.8V power to MEC1723 | 0 Ohm Short | R167 IN (Default): Connect +1.8V power OUT: Disconnect +1.8V power |
| J6 | CEC173x I2C SCL selection to MCP2221A | Standard | 1-2: I2C10 3-4 (Default): I2C06 5-6: I2C00 |
| J7 | VTR_ANALOG power to CEC173x | 0 Ohm Short | R165 IN (Default): Connect VTR_ANALOG power OUT: Disconnect VTR_ANALOG power |
| J8 | +3.3V power to CEC173x | 0 Ohm Short | R168 IN (Default): Connect +3.3V power OUT: Disconnect +3.3V power |
| J9 | +1.8V power to CEC173x | 0 Ohm Short | R169 IN (Default): Connect +1.8V power OUT: Disconnect +1.8V power |
| J10 | VTR1 power selection for CEC173x | Standard | 1-2 (Default): Connect +3.3V power 3-4: Connect +1.8V power |
| J11 | CEC173x I2C SDA selection to MCP2221A | Standard | 1-2: I2C10 3-4 (Default): I2C06 5-6: I2C00 |
| J12 | VTR2power selection for CEC173x | Standard | 1-2 (Default): Connect +3.3V power 3-4: Connect +1.8V power |
| J13 | VTR_REG power to MEC1723 | 0 Ohm Short | R170 IN (Default): Connect VTR_REG power OUT: Disconnect VTR_REG power |
| J14 | VTR2 power selection for MEC1723 | Trace-Link | 1-2 (Default): Connect +3.3V power 3-4: Connect +1.8V power |
| J15 | VTR_PLL power to MEC1723 | 0 Ohm Short | R173 IN (Default): Connect VTR_PLL power OUT: Disconnect VTR_PLL power |
| J16 | VTR_ANALOG power to MEC1723 | 0 Ohm Short | R175 IN (Default): Connect VTR_ANALOG power OUT: Disconnect VTR_ANALOG power |
| J17 | VTR1 power to MEC1723 | 0 Ohm Short | R176 IN (Default): Connect VTR1 power OUT: Disconnect VTR1 power |
| J18 | VBAT power to MEC1723 | 0 Ohm Short | R177 IN (Default): Connect VBAT power OUT: Disconnect VBAT power |
| J19 | VTR3 power to MEC1723 | 0 Ohm Short | R178 IN (Default): Connect VTR3 power OUT: Disconnect VTR3 power |
| J20 | CEC173x GPIO012/nEXTRST Pull selection | Trace-Link | 1-2 (Default): Pull-high to VTR_REG 2-3: Pull-down |
| J21 | CEC173x GPIO106/AP0_nRESET Pull selection | Trace-Link | 1-2 (Default): Pull-high to VTR_REG 2-3: Pull-down |
| J22 | CEC173x GPIOs Header | Header | For debug purposes |
| J23 | CEC173x GPIO1316/AP1_nRESET Pull selection | Trace-Link | 1-2 (Default): Pull-high to VTR_REG 2-3: Pull-down |
| J24 | CEC173x nRESET_IN pin | Standard | 1-2 (Default): Normal operation 2-3: Hold CEC1736 in reset |
| J25 | CEC173x JTAG _STRAP pin | Trace-Link | 1-2: Put in boundary scan mode 2-3 (Default): Normal operation |
| J26 | CEC173x GPIO055 Strap Option | Trace-Link | 1-2 (Default) |
| J27 | CEC173x I2C_ADDR0 Strap | Trace-Link | 1-2: Pull-high to VTR_REG 2-3 (Default): Pull-down |
| J28 | CEC173x CR_FLASH Strap | Trace-Link | 1-2 (Default): Normal operation 2-3: Boot from crisis recovery flash component |
| J29 | CEC173x GPIO124 Strap Option | Trace-Link | 1-2 (Default) |
| J30 | CEC173x BSTRAP Strap | Standard | 1-2 (Default): Normal operation 2-3: Boot from I2C or UART Crisis Port |
| J31 | CEC173x I2C_ADDR1 Strap | Trace-Link | 1-2: Pull-high to VTR_REG 2-3 (Default): Pull-down |
| J32 | CEC173x RESET_IN# Delay Circuit Power Source | Trace-Link | 1-2 (Default): Connect +3.3V power 2-3: Connect VTR_REG power |
| J33 | CEC173x PICKIT4 1x8 Header | Header | For debug purposes |
| J34 | CEC173x 32KHz Single-End Source | 0 Ohm Short | R151 IN (Default): Connect oscillator OUT: Disconnect oscillator |
| J35 | CEC173x RESET_IN# delay circuit | 0 Ohm Short | R152 IN (Default): Connect delay circuit OUT: Disconnect delay circuit |
| J36 | CEC173x GPIO157/LED1 & GPIO156/LED0 pins connection | 0 Ohm Short | R154 1-2 (Default): Connect GPIO157 to LED5 R155 3-4 (Default): Connect GPIO156 to LED6 |
| J37 | CEC173x RESET_IN# pin ground | 0 Ohm Short | IN: Hold CEC1736 in Reset R153 OUT (Default): Normal operation |
| J38 | CEC173x UART0 debug header | Standard | For debug purposes |
| J39 | MEC1723 Test Clocks Out header | Standard | For debug purposes |
| J40 | MEC1723 32KHz Single-End Input selection (Optional) | 0 Ohm Short | Use R180, R181 and R67 to select the clock source |
| J41 | MEC1723 I2C02 channel header | Standard | For debug purposes |
| J42 | MEC1723 I2C07 channel header | Standard | For debug purposes |
| J43 | MEC1723 RESET_IN# delay circuit | Standard | IN: Connect delay circuit OUT (Default): Disconnect delay circuit |
| J44 | MEC1723 RESET_IN# pin ground | 0 Ohm Short | IN: Hold MEC1723 in reset R156 OUT (Default): Normal operation |
| J45 | MEC1723 PICKIT4 1x8 Header | Header | For debug purposes |
| J46 | MEC1723 GPIO156/LED0, GPIO157/LED1, and GPIO153/LED2 pins connection | 0 Ohm Short | R140 (Default): Connect GPIO156 to LED9 R141 (Default): Connect GPIO157 to LED10 R142 (Default): Connect GPIO153 to LED11 |
| J47 | Dediprog SPI Programming Header | Header | Eliminated in this revision |
| J48 | U8 SPI Flash power source selection | Removed | U8 and J48 eliminated in this revision |
| J49 | MEC1723 XTAL2 selection | Trace-Link | 1-2 (Default): Connect to 2-pin crystal 2-3: Connect to single-end 32 KHz source |
| J50 | MEC1723 XTAL1 selection | 0 Ohm Short | R159 IN (Default): Connect to 2-pin crystal OUT: Use single-end 32 KHz source, floating |
| J51 | U8 SPI Flash isolation jumper | Removed | Eliminated in this revision |
| J52 | MEC1723 JTAG _STRAP pin | Trace-Link | 1-2: Put in boundary scan mode 2-3 (Default): Normal operation |
| J53 | MEC1723 CMP_STRAP pin | Trace-Link | 1-2 (Default) |
| J54 | MEC1723 CR_STRAP pin | Trace-Link | 1-2 (Default): Boot from SHD_SPI flash via
CEC1736 2-3: Boot from PVT_SPI flash (U8) |
| J55 | MEC1723 UART0 debug header | Standard | For debug purposes |
| J56 | MEC1723 UART_BSTRAP pin | Trace-Link | 1-2 (Default): Normal operation 2-3: Boot from UART Crisis Port |
| J57 | MEC1723 BSS_STRAP pin | Trace-Link | 1-2 (Default): Normal operation 2-3: Not boot in this application |
| J58 | CEC173x QSPI0 CS0 Pass/Failure Cases selection for demonstration purpose | Removed | Eliminated in this revision |
| J59 | CEC173x Flash Bus 1 Power select | Standard | 1-2 (Default): Connect to board power 2-3: Connect Dediprog power |
| J60 | CEC173x Flash Bus 2 Power select | Standard | 1-2 (Default): Connect to board power 2-3: Connect Dediprog power |
| J61 | Dediprog SPI Programming Header | Header | Use for U9 or U13 SPI Flash programming |
| J62 | Dediprog SPI Programming Header | Header | Use for U10 or U12 SPI Flash programming |
| J63 | U9/U11 or U13 SPI Flash Programming Selection | Removed | Eliminated in this revision |
| J64 | U10 or U12 SPI Flash Programming Selection | Removed | Eliminated in this revision |
| J65 | CEC173x AP0_RESET# connect to MEC1723 RESET_IN# | 0 Ohm Short | R150 IN (Default): Connect OUT: Disconnect |