The block diagram illustrates the overall system. Arrows with white heads indicate signals that share physical pins with other signals.

Figure 1. Block diagram

Page-1 Rectangle.6 nRF9151 nRF9151 Rectangle.187 Double flexi-arrow.245 APB APB Rectangle.246 AHB TO APB BRIDGE AHB TO APBBRIDGE Rectangle.248 AHB multilayer AHB multilayer Rectangle.254 SPIM [0..3] SPIM [0..3] Rectangle.260 SAADC SAADC Rectangle.262 GPIO GPIO Rectangle.292 UARTE [0..3] UARTE [0..3] Rectangle.300 TWIM [0..3] TWIM [0..3] Rectangle.320 SPIS [0..3] SPIS [0..3] Rectangle.340 EasyDMA EasyDMA Rectangle.373 CPU Arm Cortex-M33 CPUArmCortex-M33 Rectangle.374 AHB-AP AHB-AP Rectangle.376 NVIC NVIC Rectangle.377 ETM ETM Rectangle.379 SysTick SysTick Rectangle.399 NVMC NVMC Rectangle.405 CODE CODE Rectangle.414 EasyDMA EasyDMA Rectangle.415 EasyDMA EasyDMA Rectangle.416 EasyDMA EasyDMA Rectangle.421 EasyDMA EasyDMA Rectangle.422 TWIS [0..3] TWIS [0..3] Rectangle.426 EasyDMA EasyDMA Double flexi-arrow.429 Double flexi-arrow.433 Double flexi-arrow.435 Double flexi-arrow.437 Double flexi-arrow.439 Double flexi-arrow.441 Rectangle.447 DPPI DPPI Double flexi-arrow.451 Rectangle.477 IPC IPC Dynamic connector.481 Rectangle.556 CLOCK CLOCK Rectangle.558 POWER POWER Rectangle.559 WDT WDT Rectangle.607 UICR UICR Dynamic connector.609 Debug Debug Dynamic connector.610 ETM trace ETM trace Dynamic connector.611 ITM trace ITM trace Rectangle.612 I2S I2S Rectangle.615 PDM PDM Rectangle.618 EasyDMA EasyDMA Rectangle.619 EasyDMA EasyDMA Double flexi-arrow.621 Double flexi-arrow.623 Rounded Rectangle.328 LTE-M / NB-IoT modem LTE-M / NB-IoTmodem Rectangle.648 FICR FICR Rectangle.80 Clock control Clock control Rectangle.155 Arm TrustZone CryptoCell 310 Arm TrustZone CryptoCell 310 Rectangle.160 DMA DMA Rectangle.162 KMU KMU Dynamic connector.121 Rectangle.184 REGULATORS REGULATORS Rectangle.188 SPU SPU Dynamic connector.190 Double flexi-arrow.1065 Open/closed bar Sheet.144 Sheet.145 Sheet.146 Sheet.147 Master, v master master Rectangle.484 RAM0 RAM0 Rectangle.485 RAM1 RAM1 Rectangle.486 RAM2 RAM2 Rectangle.488 RAM0 RAM0 Rectangle.489 RAM1 RAM1 Rectangle.490 RAM2 RAM2 Rectangle.491 RAM3 RAM3 Slave, v slave slave Slave, v.493 slave slave Slave, v.494 slave slave Slave, v.495 slave slave Slave, v.496 slave slave Slave, v.497 slave slave Slave, v.498 slave slave Slave, v.499 slave slave Master, v.504 master master Slave, v.506 slave slave Slave, v.507 slave slave Slave, v.508 slave slave Slave, v.509 slave slave Dynamic connector.510 Double flexi-arrow.511 Double flexi-arrow.512 Double flexi-arrow.513 Double flexi-arrow.514 Double flexi-arrow.515 Double flexi-arrow.520 Double flexi-arrow.521 Double flexi-arrow.522 Double flexi-arrow.523 Master, h master master Master, h.527 master master Master, h.528 master master Master, h.529 master master Master, h.530 master master Master, h.531 master master Master, h.532 master master Master, h.533 master master Master, h.534 master master Slave, h slave slave Dynamic connector.536 Sheet.537 APB APB Signal, shares physical pin with other signal P0 (P0.0 – P0.31) P0(P0.0 – P0.31) Signal, shares physical pin with other signal.543 AIN0 – AIN7 AREF0 – AREF1 AIN0 – AIN7AREF0 – AREF1 Signal, shares physical pin with other signal.545 RTS RTS Signal, shares physical pin with other signal.546 CTS CTS Signal, shares physical pin with other signal.547 TXD TXD Signal, shares physical pin with other signal.548 RXD RXD Signal, shares physical pin with other signal.551 SCL SCL Signal, shares physical pin with other signal.552 SDA SDA Signal, shares physical pin with other signal.553 SCL SCL Signal, shares physical pin with other signal.554 SDA SDA Signal, shares physical pin with other signal.555 SCK SCK Signal, shares physical pin with other signal.556 MOSI MOSI Signal, shares physical pin with other signal.557 MISO MISO Signal, shares physical pin with other signal.558 SCK SCK Signal, shares physical pin with other signal.559 MOSI MOSI Signal, shares physical pin with other signal.560 MISO MISO Signal, shares physical pin with other signal.561 CSN CSN Signal, shares physical pin with other signal.562 CLK CLK Signal, shares physical pin with other signal.563 DIN DIN Signal, shares physical pin with other signal.564 MCK MCK Signal, shares physical pin with other signal.565 LRCK LRCK Signal, shares physical pin with other signal.566 SCL SCL Signal, shares physical pin with other signal.567 SDOUT SDOUT Signal, shares physical pin with other signal.568 SDIN SDIN Signal Signal.572 Signal.581 1.8 V USIM 1.8 V USIM Signal.582 / / Sheet.584 USIM USIM Rectangle.758 RAM3 RAM3 Signal.752 ANT - GPS ANT - GPS Rectangle.771 Low frequency clock sources Low frequency clock sources Signal.772 Signal.773 Rectangle.774 High frequency clock sources High frequency clock sources Rectangle.776 PWM[0..3] PWM[0..3] Rectangle.777 EasyDMA EasyDMA Signal, shares physical pin with other signal.779 OUT0-OUT3 OUT0-OUT3 Master, h.1066 master master Rectangle.261 GPIOTE GPIOTE Rectangle.400 RTC [0..1] RTC [0..1] Rectangle.420 TIMER [0..2] TIMER [0..2] Double flexi-arrow.516 Double flexi-arrow.517 Double flexi-arrow.518 Signal.1048 ANT - LTE ANT - LTE Sheet.791 Rectangle.846 RF Front End RF Front End Triangle.850 PA PA Triangle.854 LNA LNA Rectangle.43 Sheet.796 Sheet.797 Sheet.798 Sheet.799 Dynamic connector.1068 Dynamic connector.560 Rectangle.806 Power Management IC Power ManagementIC Signal.807 Signal.808 VDD VDD Sheet.170 Sheet.171 Sheet.820 Sheet.172 Sheet.821 GPS GPS Signal.823 VDD_GPIO VDD_GPIO