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Section 20 Controller Area Network
Page 988 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
20.3.2 Mailbox Structure
Mailboxes play a role as message buffers to transmit/receive CAN frames. Each Mailbox is
comprised of 3 identical storage fields that are 1): Message Control, 2): Local Acceptance Filter
Mask, 3): Message Data. In addition some Mailboxes contain the following extra Fields: 4): Time
Stamp, 5): Time Trigger configuration and 6): Time Trigger Control. The following table shows
the address map for the control, LAFM, data, timestamp, Transmission Trigger Time and Time
Trigger Control addresses for each mailbox.
Address
Control0 LAFM Data Control1
Time
Stamp
Trigger
Time TT control
Mailbox 4 bytes 4 bytes 8 bytes 2 bytes 2 bytes 2 bytes 2 bytes
0
(Receive
Only)
100 – 103 104– 107 108 – 10F 110 – 111 112 – 113 No No
1 120 – 123 124 – 127 128 – 12F 130 – 131 132 – 133 No No
2 140 – 143 144 – 147 148 – 14F 150 – 151 152 – 153 No No
3 160 – 163 164 – 167 168 – 16F 170 – 171 172 – 173 No No
4 180 – 183 184 – 187 188 – 18F 190 – 191 192 – 193 No No
5 1A0 – 1A3 1A4 – 1A7 1A8 – 1AF 1B0 – 1B1 1B2 – 1B3 No No
6 1C0 – 1C3 1C4 – 1C7 1C8 – 1CF 1D0 – 1D1 1D2 – 1D3 No No
7 1E0 – 1E3 1E4 – 1E7 1E8 – 1EF 1F0 – 1F1 1F2 – 1F3 No No
8 200 – 203 204 – 207 208 – 20F 210 – 211 212 – 213 No No
9 220 – 223 224 – 227 228 – 22F 230 – 231 232 – 233 No No
10 240 – 243 244 – 247 248 – 24F 250 – 251 252 – 253 No No
11 260 – 263 264 – 267 268 – 26F 270 – 271 272 – 273 No No
12 280 – 283 284 – 287 288 – 28F 290 – 291 292 – 293 No No
13 2A0 – 2A3 2A4 – 2A7 2A8 – 2AF 2B0 – 2B1 2B2 – 2B3 No No
14 2C0 – 2C3 2C4 – 2C7 2C8 – 2CF 2D0 – 2D1 2D2 – 2D3 No No
15 2E0 – 2E3 2E4 – 2E7 2E8 – 2EF 2F0 – 2F1 2F2 – 2F3 No No
16 300 – 303 304 – 307 308 – 30F 310 – 311 No No No
17 320 – 323 324 – 327 328 – 32F 330 – 331 No No No
18 340 – 343 344 – 347 348 – 34F 350 – 351 No No No