484
Chapter 14
FCAN Interface Function
Preliminary User’s Manual U15839EE1V0UM00
(9)
Message event registers m0, m1, and m3 (M_EVTm0, M_EVTm1, M_EVTm3) (m = 00 to 31)
The message event registers M_EVTm0, MEVTm1, and M_EVTm3 imply the event pointers for
event processing with a CAN bridge (m = 0 to 31).
These register can be read/written in 8-bit units.
Figure 14-32:
Message Event Registers m0, m1, and m3
(M_EVTm0, M_EVTm1, M_EVTm2, M_EVTm3) (m = 00 to 31)
Remark:
m = 00 to 31
Note: V850E/CA2 Jupiter has no CAN bridge implemented. Therefore the “Message Event Bytes”
have no function. To avoid unexpected settings of the ERQ flag, it is recommended to initialize
all “Message Event Bytes” with the value 0x00 at the first initialization and let that initialization
unchanged always.
7
6
5
4
3
2
1
0
Address
Offset
Note
Initial value
M_EVTm0
PTR07
PTR06
PTR05
PTR04
PTR03
PTR02
PTR01
PTR00
800H
+ (m
×
20H)
undef.
M_EVTm1
PTR17
PTR16
PTR15
PTR14
PTR13
PTR12
PTR11
PTR10
801H
+ (m
×
20H)
undef.
M_EVTm2
PTR27
PTR26
PTR25
PTR24
PTR23
PTR22
PTR21
PTR20
802H
+ (m
×
20H)
undef.
M_EVTm3
PTR37
PTR36
PTR35
PTR34
PTR33
PTR32
PTR31
PTR30
803H
+ (m
×
20H)
undef.
Bit Position
Bit Name
Function
7 to 0
(M_EVTm0)
PTR07 to
PTR00
8-bit event pointer 0 for processing with a CAN bridge.
7 to 0
(M_EVTm1)
PTR17 to
PTR10
8-bit event pointer 1 for processing with a CAN bridge.
7 to 0
(M_EVTm2)
PTR27 to
PTR20
8-bit event pointer 2 for processing with a CAN bridge.
7 to 0
(M_EVTm3)
PTR37 to
PTR30
8-bit event pointer 3 for processing with a CAN bridge.
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