h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 485
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
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14.3.18 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 14.2 shows the
register names for each mailbox.
The setting of message control registers are shown in the following. Figures 14.3 and 14.4 show
the correspondence between the identifiers and register bit names.
Mail box 0
Mail box 1
Mail box 2
Mail box 3
Mail box 15
SOF
ID-28 ID-27
MC15[1]
Standard identifier
MC0[1]
MC1[1]
MC2[1]
MC3[1]
Figure 14.2 Message Control Register Configuration
SOF
MC15[2]
MC0[2]
MC1[2]
MC2[2]
MC3[2]
ID-28 ID-27
Figure 14.4 Extended Format
Figure 14.3 Standard Format
ID-18
MC15[3]
MC0[3]
MC1[3]
MC2[3]
MC3[3]
identifier
SRR
MC15[4]
MC0[4]
MC1[4]
MC2[4]
MC3[4]
IDE
ID-18
MC15[5]
MC0[5]
MC1[5]
MC2[5]
MC3[5]
ID-17 ID-16
Section 14 Controller Area Network (HCAN)
Rev. 2.00 Dec. 05, 2005 Page 447 of 724
RTR
Extended identifier
MC15[6]
MC0[6]
MC1[6]
MC2[6]
MC3[6]
IDE
MC15[7]
MC0[7]
MC1[7]
MC2[7]
MC3[7]
R0
ID-0
REJ09B0200-0200
MC15[8]
MC0[8]
MC1[8]
MC2[8]
MC3[8]
RTR
R1
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