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M32C/86T Datasheet(PDF) 337 Page - Renesas Technology Corp |
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M32C/86T Datasheet(HTML) 337 Page - Renesas Technology Corp |
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337 / 505 page  Page 314 9 7 4 f o 5 0 0 2 , 8 0 . p e S 0 0 . 1 . v e R 0 0 1 0 - 4 0 2 0 B 9 0 J E R 23. CAN Module ) T 6 8 / C 2 3 M , 6 8 / C 2 3 M ( p u o r G 6 8 / C 2 3 M 23. CAN Module The CAN (Controller Area Network) module included in the M32C/86 group (M32C/86, M32C/86T) is a Full CAN module, compatible with CAN Specification 2.0 Part B. Two channels, CAN0 and CAN1, can be used. Table 23.1 lists specifications of the CAN module. Table 23.1 CAN Module Specifications Item Specification Protocol CAN Specification 2.0 Part B Message Slots 16 slots Polarity Dominant: "L" Recessive: "H" Acceptance Filter Global mask: 1 (for message slots 0 to 13) Local mask: 2 (for message slots 14 and 15 respectively) Baud Rate Baud rate = --- Max. 1 Mbps Tq clock cycle = Tq per bit = SS + PTS +PBS1+PBS2 Tq: Time quantum BRP: Setting value of the C0BRP and C1BRP registers, 1-255 SS: Synchronization Segment; 1 Tq PTS: Propagation Time Segment; 1 to 8 Tq PBS1: Phase Buffer Segment 1; 2 to 8 Tq PBS2: Phase Buffer Segment 2 ; 2 to 8 Tq Remote Frame Automatic Message slot that receives the remote frame transmits the data frame Answering Function automatically Time Stamp Function Time stamp function with a 16-bit counter. Count source can be selected from the CAN bus bit clock divided by 1, 2, 3 or 4 CAN bus bit clock = BasicCAN Mode BasicCAN function can be used with the CANi message slots 14 and 15 Transmit Abort Function Transmit request is aborted Loopback Function Frame transmitted by the CAN module is received by the same CAN module Forcible Error Active The CAN module is forced into an error active state by resetting an error Transition Function counter. Single-Shot Transmit Function The CAN module does not transmit data again even if arbitration lost or transmission error causes a transmission failure Self-Test Function The CAN module communicates internally and diagnoses its CAN module state NOTES: 1. Use an oscillator with maximum 1.58% oscillator tolerance. 1 Tq clock cycle x Tq per bit BRP + 1 CAN clock 1 CAN bit time |
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