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32180 Group User’s Manual (Rev.1.0)
CAN MODULE
13.9 Precautions about CAN Module
13.9 Precautions about CAN Module
• Note for cancelation of transmit and receive CAN remote frame
When aborting remote frame transmission or canceling remote frame receiving, make sure that the RA (Remote
Active) bit is cleared to "0" after writing "H'00" or "H'0F" to the CAN Message Slot Control Register.
(1) When aborting remote frame transmission
Figure 13.9.1 Opertion Flow when Aborting Remote Frame Transmission
(2) When canceling remote frame receiving
Figure 13.9.2 Opertion Flow when Canceling Remote Frame Receiving
RA (Remote Active)
bit = "0"
Complete transmission
abort
Note 1: H'00 or H'0F can be used.
No
Ye s
Start transmission abort
Write H'00 or H'0F to
CAN message slot
control register
(Note 1)
Read CAN message
slot control register
Complete receiving
abort
No
Ye s
Start receiving abort
Write H'00 or H'0F to
CAN message slot
control register
(Note 1)
Read CAN message
slot control register
RA (Remote Active)
bit = "0"
Note 1: H'00 or H'0F can be used.
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