SH7047F Datasheet, PDF (45/85 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7047 Series

Section 4 Example 4
(Standard Format, 8 Bytes of Data, Prioritized)
4.1 Transmission and Reception Specifications
Using two SH7047F devices, transmission of 8 bytes of data in the standard format from multiple
mailboxes using identifier priority settings and reception by mailbox 0 only .
Common Transmission and Reception Specifications
• The data transfer speed is 250 kbps (during 50 MHz operation).
Transmission Specifications
• Mailboxes 1 to 15 are used.
• Messages are transmitted based on identifier priority settings.
• The data length for each mailbox is 8 bytes. The identifier and data for each mailbox are listed
in table 4.1.
Table 4.1 Mailbox Settings
MBx
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Identifier (11 Bits)
0x666
0x2AA
0x777
0x333
0x088
0x4CC
0x199
0x7FF
0x111
0x444
0x555
0x6EE
0x3BB
0x222
0x5DD
Data (8 Bytes)
0x1111 1111 1111 1111
0x2222 2222 2222 2222
0x3333 3333 3333 3333
0x4444 4444 4444 4444
0x5555 5555 5555 5555
0x6666 6666 6666 6666
0x7777 7777 7777 7777
0x8888 8888 8888 8888
0x9999 9999 9999 9999
0xAAAA AAAA AAAA AAAA
0xBBBB BBBB BBBB BBBB
0xCCCC CCCC CCCC CCCC
0xDDDD DDDD DDDD DDDD
0xEEEE EEEE EEEE EEEE
0xFFFF FFFF FFFF FFFF
Priority
12
5
14
6
1
9
3
15
2
8
10
13
7
4
11
Rev. 1.00, 08/03, page 37 of 74