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參數(shù)資料
| 型號(hào)： | C505-LM |
| 廠商： | SIEMENS AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-Bit CMOS Microcontroller |
| 中文描述： | 8位CMOS微控制器 |
| 文件頁(yè)數(shù)： | 37/85頁(yè) |
| 文件大?。?/td> | 335K |
| 代理商： | C505-LM |
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Semiconductor Group
37
1997-12-01
C505 / C505C
C505A / C505CA
CAN Controller (C505C and C505CA only)
The on-chip CAN controller, compliant to version 2.0B, is the functional heart which provides all
resources that are required to run the standard CAN protocol (11-bit identifiers) as well as the
extended CAN protocol (29-bit identifiers). It provides a sophisticated object layer to relieve the
CPU of as much overhead as possible when controlling many different message objects (up to 15).
This includes bus arbitration, resending of garbled messages, error handling, interrupt generation,
etc. In order to implement the physical layer, external components have to be connected to the
C505.
The internal bus interface connects the on-chip CAN controller to the internal bus of the
microcontroller. The registers and data locations of the CAN interface are mapped to a specific
256 byte wide address range of the external data memory area (F700H to F7FFH) and can be
accessed using MOVX instructions.
Figure 15
shows a block diagram of the on-chip CAN
controller.
Figure 15
CAN Controller Block Diagram
MCB02736
Bit
Timing
Logic
Timing
Generator
BTL-Configuration
CRC
Gen./Check
TX/RX Shift Register
TXDC
RXDC
Intelligent
Memory
Interrupt
Register
Processor
Register
Status
Stream
Bit
Error
Logic
Management
Messages
Handlers
Control
Status +
to internal Bus
Clocks
(to all)
Control
Messages
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| C505A-4EM | 8-Bit CMOS Microcontroller |
| C505C-LM | 8-Bit CMOS Microcontroller |
| C505CA-2R | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| C505CA-4E | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
| C505CA-4R | 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash |
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