m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 362

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

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When using the CAN interrupt, the C0SISTR register indicates which message slot is requesting an
interrupt. The SISi bits (i=0 to 15) are not automatically set to "0" (no interrupt requested) when an
interrupt is acknowledged. Set the SISj bits to "0" by program
Refer to 22.3 CAN Interrupt for details.
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22.1.11.1 Message Slot for Transmission
22.1.11.2 Message Slot for Reception
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The SISi bit is set to "1" (interrupt requested) when the C0TSR register is stored into the message slot
i after data transmission is completed.
The SISi bit is set to "1" when the received message is stored in the message slot i after data reception
is completed.
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NOTES:
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1. Use the MOV instruction, instead of the bit clear instruction, to set the SISi bit to "0". Bits in the
2. If the automatic answering function is enabled in the remote frame receive message slot, the
3. In the remote frame transmit message slot, the SISi bit is set to "1" after the remote frame is
4. The SISi bit is set to "1" if the SISi bit is set to "1" by an interrupt request and "0" by program
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C0SISTR register, which are not being changed to "0", must be to "1".
SISi bit is set to "1" after the remote frame is received and after the data frame is transmitted.
transmitted and after the data frame is received.
simultaneously.
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For example: To set the SIS0 bit to "0"
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Assembly language:
C language:
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mov.w
c0sistr = 0x7FFF;
#07FFFh, C0SISTR
(1)
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22. CAN Module