Renesas R5S72643 ユーザーズマニュアル
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
Time
MB31
Settable Settable
Time
reference
reception
Available
MB30
Settable Settable
Time
reference
transmission in
time master mode
time master mode
Reception in
time slave mode
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.
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