Features
CPU Features
| • | Fully static RISC processor core, capable of operating
from 0 to 24 MHz with zero wait/hold states |
| • | Minimum 41.7 ns instruction cycle time with a 24-MHz internal
clock frequency, based on a 12-MHz external input |
| • | 47 independently vectored peripheral interrupts |
On-Chip Memory
| • | 256K bytes reprogrammable Flash program memory |
| • | 8K bytes Flash data memory |
| • | 32K bytes of static RAM data memory |
| • | Addresses up to 12M bytes of external memory |
Broad Range of Hardware Communications Peripherals
| • | Bluetooth Lower Link Controller (LLC) including a shared
4.5K byte Bluetooth RAM and 1K byte Bluetooth Sequencer
RAM |
| • | Universal Serial Bus (USB) 1.1 full-speed node |
| • | ACCESS.bus serial bus (compatible with Philips I2C bus) |
| • | CAN interface with 15 message buffers conforming
to CAN specification 2.0B active |
| • | 8/16-bit SPI, Microwire/Plus serial interface |
| • | Four-channel Universal Asynchronous Receiver/Transmitter
(UART), one channel has USART capability |
| • | Advanced Audio Interface (AAI) to connect to external 8/
13-bit PCM Codecs as well as to ISDN-Controllers
through the IOM-2 interface (slave only) |
| • | CVSD/PCM converter supporting one bidirectional audio
connection |
General-Purpose Hardware Peripherals
| • | 12-bit A/D Converter (ADC) |
| • | Dual 16-bit Multi-Function Timer (MFT)
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| • | Versatile Timer Unit with four subsystems (VTU)
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| • | Four-channel DMA controller
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| • | Timing and Watchdog Unit
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| • | Random Number Generator peripheral
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Extensive Power and Clock Management Support
| • | On-chip Phase Locked Loop
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| • | Support for multiple clock options
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| • | Dual clock and reset |
| • | Power-down modes |
Flexible I/O
| • | Up to 54 general-purpose I/O pins (shared with on-chip
peripheral I/O) |
| • | Programmable I/O pin characteristics: TRI-STATE output,
push-pull output, weak pull-up input, high-impedance
input |
| • | Schmitt triggers on general-purpose inputs |
| • | Multi-Input Wake-Up (MIWU) capability |
Power Supply
| • | I/O port operation at 2.5V to 3.3V |
| • | Core logic operation at 2.5V |
| • | On-chip power-on reset |
Temperature Range
| • | -40?C to +85?C (Industrial) |
Packages
| • | LQFP-128, LQFP-144 |
Complete Development Environment
| • | Pre-integrated hardware and software support for rapid prototyping and production |
| • | Integrated environment |
| • | Project manager |
| • | Multi-file C source editor |
| • | High-level C source debugger |
| • | Comprehensive, integrated, one-stop technical support |
Bluetooth Protocol Stack
| • | Applications can interface to the high-level protocols or
directly to the low-level Host Controller Interface (HCI) |
| • | Transport layer support allows HCI command-based interface
over UART port |
| • | Baseband (Link Controller) hardware minimizes the
bandwidth demand on the CPU |
| • | Link Manager (LM) |
| • | Logical Link Control and Adaptation Protocol (L2CAP) |
| • | Service Discovery Protocol (SDP) |
| • | RFCOMM Serial Port Emulation Protocol |
| • | All packet types, piconet, and scatternet functionality
supported
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Description The CP3BT26 connectivity processor combines high performance
with the massive integration needed for embedded
Bluetooth applications. A powerful RISC core with on-chip
SRAM and Flash memory provides high computing bandwidth,
hardware communications peripherals provide high-
I/O bandwidth, and an external bus provides system expandability.
On-chip communications peripherals include: Bluetooth
Lower Link Controller, CAN controllers, Microwire/Plus,
SPI, ACCESS.bus, quad UART, 12-bit A/D converter, and
Advanced Audio Interface (AAI). Additional on-chip peripherals
include Random Number Generator (RNG), DMA controller,
CVSD/PCM conversion module, Timing and
Watchdog Unit, Versatile Timer Unit, Multi-Function Timer,
and Multi-Input Wake-Up (MIWU) unit.
Bluetooth hand-held devices can be both smaller and lower
in cost for maximum consumer appeal. The low voltage and
advanced power-saving modes achieve new design points
in the trade-off between battery size and operating time for
handheld and portable applications.
In addition to providing the features needed for the next generation
of embedded Bluetooth products, the CP3BT26 is
backed up by the software resources designers need for
rapid time-to-market, including an operating system, Bluetooth
protocol stack implementation, peripheral drivers, reference
designs, and an integrated development
environment. Combined with a Bluetooth radio transceiver
such as Nationalis LMX5252, the CP3BT26 provides a complete
Bluetooth system solution.
National Semiconductor offers a complete and industryproven
application development environment for CP3BT26
applications, including the IAR Embedded Workbench,
iSYSTEM winIDEA and iC3000 Active Emulator, Bluetooth
Development Board, Bluetooth Protocol Stack, and Application
Software.
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