FINAL
APRIL 2005
CP3CN17 Reprogrammable Connectivity Processor
with CAN Interface
1.0 General Description
The CP3CN17 connectivity processor combines a powerful The CP3CN17 is backed up by the software resources de-
RISC core with on-chip SRAM and Flash memory for high signers need for rapid time-to-market, including an operat-
computing bandwidth, hardware communications peripher- ing system, peripheral drivers, reference designs, and an
als for high I/O bandwidth, and an external bus for system integrated development environment.
expandability.
National Semiconductor offers a complete and industry-
On-chip communications peripherals include: CAN control- proven application development environment for CP3CN17
ler, ACCESS.bus, Microwire/Plus, SPI, UART, and Ad- applications, including the IAR Embedded Workbench,
vanced Audio Interface (AAI). Additional on-chip peripherals iSYSTEM winIDEA and iC3000 Active Emulator, Develop-
include DMA controller, CVSD/PCM conversion module, ment Board, and Application Software.
Timing and Watchdog Unit, Versatile Timer Unit, Multi-
Function Timer, and Multi-Input Wakeup.
Block Diagram
Clock Generator
12 MHz and 32 kHz
Oscillator
PLL and Clock
Generator
Power-on-Reset
256K Bytes
Flash
Program
Memory
8K Bytes
Flash
Data
10K Bytes
Static
RAM
Serial
Debug
Interface
CR16C
CPU Core
CAN
CPU Core Bus
Bus
Interface
Unit
Peripheral
Bus
Controller
Interrupt
Control
Unit
Power
Manage-
ment
Timing and
Watchdog
Unit
DMA
Controller
CVSD/PCM
Peripheral Bus
Audio
Interface
Microwire/
SPI
ACCESS
.bus
Versatile
Timer Unit
Muti-Func-
tion Timer
Multi-Input
Wake-Up
GPIO
UART
DS138
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