SH7205 Datasheet, PDF (1045/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 20 Controller Area Network (RCAN-TL1)
The above limitation is not applied to mailboxes which are not set as time-triggered transmission.
Important: Because of limitation on setting Tx-Trigger Time, only one Mailbox can be assigned
to one time window.
TTT24
TTT25
CCR = 0
Mailbox-24 (Tx)
TTT24 and TTT25
Mailbox-24 (Tx)
CCR = 1
Mailbox-25 (Tx)
Mailbox-25 (Tx)
CCR = 2
Mailbox-24 (Tx)
Mailbox-24 (Tx)
CCR = 3
Mailbox-25 (Tx)
supported by RCAN-TL1
Mailbox-25 (Tx)
NOT supported by RCAN-TL1
Figure 20.18 Limitation on Tx-Trigger Time
The value of TCMR2 as Watch_Trigger has to be larger than TTT(Mailbox-30), which shows the
length of a basic cycle.
Figures 20.19 and 20.20 show examples of configurations for (Potential) Time Master and Time
Slave. “L” in diagrams shows the length in time of the time reference messages.
Rev. 1.00 Mar. 25, 2008 Page 1013 of 1868
REJ09B0372-0100