SH7058 Datasheet, PDF (576/1130 Pages) Renesas Technology Corp – Renesas SuperHTM RISC engine

Register Name
MBx[4], MBx[5]*
Address
Bit Bit Name
H'104 + N×32 3 to DLC[3:0]
0
Note: * x/N: 0 to 31 (Indicates the mailbox number)
Description
Data Length Code
Indicate the number of data bytes to be
transmitted in a data frame.
DLC[3:0] Data Length
0000 0 bytes
0001 1 byte
0010 2 bytes
0011 3 bytes
0100 4 bytes
0101 5 bytes
0110 6 bytes
0111 7 bytes
1xxx
8 bytes
[Legend]
x: Don’t care
Table 16.3 Mailbox Configuration (Setting of MBC[2:0] Bits)
Data
Remote
Data
Remote
Frame
Frame
Frame
Frame
MBC[2] MBC[1] MBC[0] Transmission Transmission Reception Reception Description
0
0
0
Yes
Yes
No
No
• Not allowed for mailbox 0
0
0
1
Yes
Yes
No
Yes
• Can be used with ATX
• Not allowed for mailbox 0
• LAFM can be used
0
1
0
No
No
Yes
Yes
• Allowed for mailbox 0
• LAFM can be used
0
1
1
1
0
0
No
Setting prohibited
Yes
Yes
Yes
• Not allowed for mailbox 0
• LAFM can be used
1
0
1
No
Yes
Yes
No
• Not allowed for mailbox 0
• LAFM can be used
1
1
0
1
1
1
Setting prohibited
Mailbox inactive
Rev. 3.0, 09/04, page 535 of 1086