Rev. 1.0, 09/02, page 381 of 568
Register
Name
Bit Bit
Name R/W
Description
7 to 4
R/W
The initial value of these bits is undefined. They
must be initialized by writing 0 or 1.
MCx[1]
3 to 0
DLC3 to
DLC0
R/W
Data Length Code
Set the data length of a data frame or the data
length requested in a remote frame within the range
of 0 to 8 bits.
0000: 0 byte
0001: 1 byte
0010: 2 bytes
0011: 3 bytes
0100: 4 bytes
0101: 5 bytes
0110: 6 bytes
0111: 7 bytes
1000: 8 bytes
:
:
1111: 8 bytes
MCx[2]
MCx[3]
MCx[4]
7 to 0
7 to 0
7 to 0
R/W
R/W
R/W
The initial value of these bits is undefined; they
must be initialized by writing 0 or 1.
7 to 5
ID-20 to ID-18
R/W
Sets ID-20 to ID-18 in the identifier.
4
RTR
R/W
Remote Transmission Request
Used to distinguish between data frames and
remote frames.
0: Data frame
1: Remote frame
3 IDE
R/W
Identifier
Extension
Used to distinguish between the standard format
and extended format of data frames and remote
frames.
0: Standard format
1: Extended format
2
R/W
The initial value of this bit is undefined. It must be
initialized by writing 0 or 1.
MCx[5]
1 to 0
ID-17 to ID-16
R/W
Sets ID-17 and ID-16 in the identifier.
MCx[6]
7 to 0
ID-28 to ID-21
R/W
Sets ID-28 to ID-21 in the identifier.
MCx[7]
7 to 0
ID-7 to ID-0
R/W
Sets ID-7 to ID-0 in the identifier.
MCx[8]
7 to 0
ID-15 to ID-8
R/W
Sets ID-15 to ID-8 in the identifier.
Note: x: Mailbox number
Содержание H8S/2627
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