Rev. 1.0, 09/02, page 357 of 568
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 Abbreviation
Input/Output
Function
HCAN transmit data pin
HTxD
Output
CAN bus transmission pin
HCAN receive data pin
HRxD
Input
CAN bus reception 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)
Содержание H8S/2627
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