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Renesas R5S72643 User Manual

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Section 20   Controller Area Network 
Page 990 of 2108 
 
R01UH0134EJ0400  Rev. 4.00 
 
 Sep 
24, 
2014 
SH7262 Group, SH7264 Group
Table 20.1  Roles of Mailboxes 
 
Event Trigger 
Time Trigger 
Remark 
 Tx 
Rx 
Tx 
Rx  TimeStamp 
Tx-Trigger 
Time 
MB31 
Settable Settable
 
 Time 
reference 
reception 
Available 
 
MB30 
Settable Settable
 Time 
reference 
transmission in 
time master mode
Reception in 
time slave mode
Available Available 
MB29 - 24 
Settable Settable
 
Settable Settable
 
 Available 
MB23 - 16 
Settable Settable
 
 (ET) 
Settable
 
 
 
MB15 - 1 
Settable Settable
 
 (ET) 
Settable
 Available 
 
MB0 
 
Settable
 
 
Settable
 Available 
 
 
(ET) shows that it works during merged arbitrating window, after completion of time-triggered 
transmission. 
TimeStamp[15:0] (CYCTR[15:0] or CCR[5:0]/CYCTR[15:6] at SOF)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
RTR
IDE
0
0
NMC
0
0
DLC[3:0]
EXTID[15:0]
STDID[10:0]
EXTID[17:16]
MBC[2:0]
MSG_DATA_1
MSG_DATA_3
MSG_DATA_5
MSG_DATA_7
EXTID_
LAFM[17:16]
IDE_
LAFM
0
0
STDID_LAFM[10:0]
EXTID_LAFM[15:0]
0
0
0
0
TimeStamp[15:0] (CYCTR[15:0] or CCR[5:0]/CYCTR[15:6] at SOF)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
RTR
IDE
0
0
NMC
ATX
DART
DLC[3:0]
EXTID[15:0]
STDID[10:0]
EXTID[17:16]
MBC[2:0]
MSG_DATA_1
MSG_DATA_3
MSG_DATA_5
MSG_DATA_7
EXTID_
LAFM[17:16]
IDE_
LAFM
0
0
STDID_LAFM[10:0]
EXTID_LAFM[15:0]
0
0
0
0
MSG_DATA_0 (first Rx/Tx Byte)
MSG_DATA_2
MSG_DATA_4
MSG_DATA_6
MSG_DATA_0 (first Rx/Tx Byte)
MSG_DATA_2
MSG_DATA_4
MSG_DATA_6
Address
Data Bus
Access Size
Field Name
Word/LW
Word
Word/LW
Word
Byte/Word/LW
Byte/Word
Byte/Word/LW
Byte/Word
Byte/Word
Word
Control 0
LAFM
Data
Control 1
TimeStamp
Word/LW
Word
Word/LW
Word
Byte/Word/LW
Byte/Word
Byte/Word/LW
Byte/Word
Byte/Word
Word
Control 0
LAFM
Data
Control 1
TimeStamp
MB0 (reception MB with timestamp)
MBC[1] is fixed to "1"
Byte: 8-bit access, Word: 16-bit access, LW (LongWord) : 32-bit access
MB15 to 1 (MB with timestamp)
H'100 + N*32 
H'102 + N*32 
H'104 + N*32 
H'106 + N*32 
H'108 + N*32 
H'10A + N*32 
H'10C + N*32 
H'10E + N*32 
H'110 + N*32
H'112 + N*32
Address
Data Bus
Access Size
Field Name
H'100 + N*32 
H'102 + N*32 
H'104 + N*32 
H'106 + N*32 
H'108 + N*32 
H'10A + N*32 
H'10C + N*32 
H'10E + N*32 
H'110 + N*32
H'112 + N*32
 
Figure 20.3   Mailbox-N Structure