Table of Contents
Advertisement
15.2
Input/Output Pins
Table 15.1 shows the HCAN's pins.
When using HCAN pins, settings must be made in the HCAN configuration mode (during
initialization: MCR0 = 1 and GSR3 = 1).
Table 15.1 HCAN Pins
Name
HCAN transmit data pin
HCAN receive data pin
A bus driver is necessary for the interface between the pins and the CAN bus. A Philips
PCA82C250 compatible model is recommended.
15.3
Register Descriptions
The HCAN has the following registers.
• Master control register (MCR)
• General status register (GSR)
• Bit configuration register (BCR)
• Mailbox configuration register (MBCR)
• Transmit wait register (TXPR)
• Transmit wait cancel register (TXCR)
• Transmit acknowledge register (TXACK)
• Abort acknowledge register (ABACK)
• Receive complete register (RXPR)
• Remote request register (RFPR)
• Interrupt register (IRR)
• Mailbox interrupt mask register (MBIMR)
• Interrupt mask register (IMR)
• Receive error counter (REC)
• Transmit error counter (TEC)
• Unread message status register (UMSR)
• Local acceptance filter mask H (LAFMH)
• Local acceptance filter mask L (LAFML)
• Message control (8-bit × 8 registers × 16 sets) (MC0 to MC15)
• Message data (8-bit × 8 registers × 16 sets) (MD0 to MD15)
Abbreviation
Input/Output
HTxD
Output
HRxD
Input
Function
CAN bus transmission pin
CAN bus reception pin
Rev. 1.0, 09/02, page 357 of 568
Advertisement
Table of Contents
