CP3UB26 Datasheet, PDF (1/268 Pages) National Semiconductor (TI) – Reprogrammable Connectivity Processor with USB and CAN Interfaces

FINAL
JULY 2004
CP3UB26 Reprogrammable Connectivity Processor with
USB and CAN Interfaces
1.0 General Description
The CP3UB26 connectivity processor combines high per-
formance with the massive integration needed for embed-
ded 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 expand-
ability.
On-chip communications peripherals include: Universal Se-
rial Bus (USB) 1.1 node, CAN, Microwire/Plus, SPI, AC-
CESS.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, Ver-
satile Timer Unit, Multi-Function Timer, and Multi-Input
Wake-Up (MIWU) unit.
trade-off between battery size and operating time for hand-
held and portable applications.
In addition to providing the features needed for the next gen-
eration of embedded products, the CP3UB26 is backed up
by the software resources designers need for rapid time-to-
market, including an operating system, peripheral drivers,
reference designs, and an integrated development environ-
ment.
National Semiconductor offers a complete and industry-
proven application development environment for CP3UB26
applications, including the IAR Embedded Workbench,
iSYSTEM winIDEA and iC3000 Active Emulator, Develop-
ment Board, and Application Software.
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
Block Diagram
Clock Generator
12 MHz and 32 kHz
Oscillator
PLL and Clock
Generator
Power-on-Reset
CR16C
CPU Core
256K Bytes
Flash
Program
Memory
8K Bytes
Flash
Data
32K Bytes
Static
RAM
CAN 2.0B
Controller
Serial
Debug
Interface
CPU Core Bus
Bus
Interface
Unit
DMA
Controller
Peripheral
Bus
Controller
Interrupt
Control
Unit
CVSD/PCM
Converter
Power
Manage-
ment
Timing and
Watchdog
Unit
Random
Number
Generator
Peripheral Bus
GPIO
Audio
Interface
Microwiire/
SPI
Quad UART
ACCESS
.bus
Versatile
Timer Unit
Muti-Func-
tion Timer
Multi-Input
Wake-Up
8-Channel
12-bit ADC
USB
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