HD6417750RF240V Datasheet, PDF (445/606 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 15 Controller Area Network (HCAN)
15.3.18 Message Control (MC0 to MC15)
The message control register sets consist of eight 8-bit registers for one mailbox. The HCAN has
16 sets of these registers. Because message control registers are in RAM, their initial values after
power-on are undefined. Be sure to initialize them by writing 0 or 1. Figure 15.2 shows the
register names for each mailbox.
Mail box 0
Mail box 1
Mail box 2
Mail box 3
MC0[1]
MC1[1]
MC2[1]
MC3[1]
MC0[2]
MC1[2]
MC2[2]
MC3[2]
MC0[3]
MC1[3]
MC2[3]
MC3[3]
MC0[4]
MC1[4]
MC2[4]
MC3[4]
MC0[5]
MC1[5]
MC2[5]
MC3[5]
MC0[6]
MC1[6]
MC2[6]
MC3[6]
MC0[7]
MC1[7]
MC2[7]
MC3[7]
MC0[8]
MC1[8]
MC2[8]
MC3[8]
Mail box 15 MC15[1] MC15[2] MC15[3] MC15[4] MC15[5] MC15[6] MC15[7] MC15[8]
Figure 15.2 Message Control Register Configuration
The setting of message control registers are shown in the following. Figures 15.3 and 15.4 show
the correspondence between the identifiers and register bit names.
SOF ID-28 ID-27
ID-18 RTR IDE R0
Identifier
Figure 15.3 Standard Format
SOF ID-28 ID-27
ID-18 SRR IDE ID-17 ID-16
ID-0 RTR R1
Standard identifier
Extended identifier
Figure 15.4 Extended Format
Rev. 7.00 Sep. 11, 2009 Page 409 of 566
REJ09B0211-0700