Fujitsu F2MCTM-16LX Manual do Utilizador Página 482

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CHAPTER 21 CAN CONTROLLER
21.4.10 IDE Register (IDER)
This register stores the frame format used by the message buffers (x) during
transmission/reception.
Register Configuration
Figure 21.4-10 Configuration of the IDE Register (IDER)
Register Function
0: The standard frame format (ID11 bit) is used for the message buffer (x).
1: The extended frame format (ID29 bit) is used for the message buffer (x).
Notes:
This register should be set when the message buffer (x) is invalid (BVALx of the message buffer valid
register (BVALR) = 0). Setting when the buffer is valid (BVALx = 1) may cause unnecessary received
messages to be stored.
To invalidate the message buffer (by setting the BVALR: BVAL bit to 0) while the CAN controller is
operating for CAN communication (the read value of the CSR: HALT bit is 0 and the CAN controller is
operating for CAN bus communication to enable transmission and reception), follow the procedure in
"21.13 Precautions when Using CAN Controller".
Address bit15 bit14 bit13 bit12 bit11 bit10 bit9 bit8 IDER1(upper)
CAN1: 007D09
H
IDE15 IDE14 IDE13 IDE12 IDE11 IDE10 IDE9 IDE8
Reset value
XXXXXXXX
B
R/WR/WR/WR/WR/WR/WR/WR/W
Address bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 IDER1(Lower)
CAN1: 007D08
H
IDE7 IDE6 IDE5 IDE4 IDE3 IDE2 IDE1 IDE0 Reset value
XXXXXXXX
B
R/WR/WR/WR/WR/WR/WR/WR/W
R/W : Read/Write
X : Undefined
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