The CP3BT10 is a re-programmable connectivity processor from National Semiconductor Corporation with Bluetooth® and USB interfaces. The processor combines a powerful RISC core with on-chip SRAM and Flash memory for high computing bandwidth, communication peripherals for high I/O bandwidth, and an external bus for system expandability.
The CP3BT10 Connectivity Processor is a reprogrammable micro‑computer that integrates a RISC core, on‑chip SRAM and Flash, and a variety of communications peripherals such as Bluetooth Lower Link Controller, USB, ACCESS.bus, Microwire/SPI, UART, and Advanced Audio Interface. It targets embedded Bluetooth and USB applications, offering high I/O bandwidth, power‑saving modes, and extensive development support including an OS, protocol stack, and reference designs.
The handbook details the CPU architecture, memory organization, I/O configuration, bus interface, interrupt handling, and peripheral modules (Bluetooth LLC, USB controller, timers, DMA, etc.). It also covers power‑management modes, clock generation, and programming procedures, making it a comprehensive guide for designers and developers working with the CP3BT10.
| CPU core speed | 0 to 24 MHz |
|---|---|
| Instruction cycle time | 41.7 ns |
| Peripheral interrupts | 30 independently vectored |
| Flash program memory | 256 KB |
| Flash data memory | 8 KB |
| Static RAM | 10 KB |
| External memory address space | up to 8 MB |
| Configurable I/O pins | up to 37 |
| Operating temperature range | -40 °C to +85 °C (Industrial) |
| Core voltage | 2.5 V |
| I/O port voltage range | 2.5 V to 3.3 V |
| Bluetooth data RAM | 4.5 KB |
| Bluetooth sequencer RAM | 1 KB |
The device operates from –40 °C to +85 °C (Industrial grade).
It includes 256 KB of reprogrammable Flash program memory.
The processor offers up to 37 software‑configurable I/O pins.