DV251001 Microchip Technology, DV251001 Datasheet - Page 22

• Manufacturer Part Number: DV251001
• Description: KIT DEVELOPMENT CAN MCP2510
• Manufacturer: Microchip Technology

Specifications of DV251001

• Main Purpose: Interface, CAN Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP2510, MCP2515
• Primary Attributes: Stand alone CAN Controller with SPI
• Silicon Manufacturer: Microchip
• Application Sub Type: CAN
• Kit Application Type: Interface
• Silicon Core Number: MCP2510, MCP2515
• Kit Contents: Board Cable Power Supply CD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Lead Free Status / RoHS Status: na, Lead free / RoHS Compliant
• Other names: DV251001R; DV251001R

DS51416A-page 18
4.3.3
The Physical Layer window is where the CAN bus rate is configured. The user has
bit-level control of the three CNF registers (CNF1, CNF2 and CNF3) that set up all items
required for CAN bit timing, including the time quanta (TQ), bit segments, the
synchronization jump width (SJW) and the baud rate prescaler (BRP).
The calculated bit rate is shown at the bottom of the window. For this calculation to be
correct, the oscillator value must be correct. To change oscillator values, select Options
> MCP2515… from the menu bar.
FIGURE 4-9:
Note:
Physical Layer Window
The CNF registers can be modified only when the MCP2515 is in
Configuration mode and will display shaded in all other modes of
operation.
PHYSICAL LAYER WINDOW
 2003 Microchip Technology Inc.