The CSP29 pin assignment figure and table describe the pinouts for this variant of the device.
Pins that can be used as clock signals are shown in as red in the figure. For more information about clock pins, see Clock pins.
| Pin | Clock pin | Name | Function | Description | Dedicated function |
|---|---|---|---|---|---|
| A1 |
|
DECRF |
Power |
Power supply decoupling |
|
| A2 |
|
XC1 |
Analog input |
Connection for 32 MHz crystal |
|
| A3 |
|
XC2 |
Analog input |
Connection for 32 MHz crystal |
|
| A4 | Yes |
P1.03 AIN3 |
Digital I/O Analog input |
General purpose I/O Analog input |
|
| A5 |
|
P1.10 ASO[1] TRACECLK AIN5 |
Digital I/O Digital I/O Digital I/O Analog input |
General purpose IO TAMPC active shield output Trace clock Analog input |
TAMPC Trace
|
| B1 |
|
ANT |
RF |
Single ended radio antenna connection |
|
| B3 |
|
P1.09 |
Digital I/O |
General purpose I/O |
|
| B4 |
|
P1.05 ASO[0] EXTREF |
Digital I/O Digital I/O Analog input |
General purpose IO TAMPC active shield output External reference |
TAMPC |
| B5 |
|
P1.13 TRACEDATA[2] XL1 |
Digital I/O Digital I/O Analog input |
General purpose IO Trace data Connection for 32.768 kHz crystal |
Trace
|
| C1 |
|
VSS |
Power |
Ground |
|
| C2 |
|
nRESET |
Reset |
Pin reset with on-chip pull-up |
|
| C3 |
|
P1.01 AIN1 |
Digital I/O Analog input |
General purpose I/O Analog input |
|
| C4 |
|
P1.07 AIN4 ASI[0] |
Digital I/O Analog input Digital I/O |
General purpose IO Analog input TAMPC active shield input |
TAMPC |
| C5 |
|
P1.14 TRACEDATA[3] XL2 |
Digital I/O Digital I/O Analog input |
General purpose IO Trace data Connection for 32.768 kHz crystal |
Trace
|
| D1 |
|
VSS |
Power |
Ground |
|
| D2 |
|
SWDCLK |
Debug |
Serial wire clock. Input with on-chip pull-down. |
|
| D3 |
|
P1.02 AIN2 |
Digital I/O Analog input |
General purpose I/O Analog input |
|
| D4 | Yes |
P1.11 ASI[1] TRACEDATA[0] SWO AIN6 |
Digital I/O Digital I/O Digital I/O Digital I/O Analog input |
General purpose IO TAMPC active shield input Trace data Serial wire output (SWO) Analog input |
TAMPC Trace
|
| D5 |
|
DECA |
Power |
Power supply decoupling |
|
| E1 |
|
DECB |
Power |
Power supply |
|
| E2 |
|
SWDIO |
Debug |
Serial wire data. Bidirectional with standard-drive and on-chip pull-up. |
|
| E3 |
|
P1.00 AIN0 |
Digital I/O Analog input |
General purpose I/O Analog input |
|
| E4 | Yes |
P1.12 TRACEDATA[1] AIN7 |
Digital I/O Digital I/O Analog input |
General purpose IO Trace data Analog input |
Trace
|
| E5 |
|
DECD |
Power |
Power supply decoupling |
|
| F1 |
|
CFLYH |
Power |
Fly capacitor for boost |
|
| F2 |
|
CFLYL |
Power |
Fly capacitor for boost |
|
| F3 |
|
VDDL |
Power |
Power supply |
|
| F4 |
|
VSS |
Power |
Ground |
|
| F5 |
|
DCC |
Power |
DC/DC converter output |
|