h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 750
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
(766 pages)
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Rev. 2.00 Dec. 05, 2005 Page 712 of 724
REJ09B0200-0200
Item
14.3.16 Unread Message
Status Register (UMSR)
14.3.18 Message Control
(MC0 to MC15)
Page
444
448
Revision (See Manual for Details)
Amended
Amended
Bit
15
:
0
Register
Name
MCx[1]
Bit Name
UMSR7
:
UMSR8
Bit
3 to 0 DLC3 to
Initial
Value R/W
0
:
0
Bit Name R/W
DLC0
R/(W)*
:
R/(W)*
R/W
Description
Each bit indicates that the
received message has been
overwritten by a new message
before being read.
[Setting condition]
•
[Clearing condition]
•
Description
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
1xxx: 8 bytes
When a new message is
received before RXPR is
cleared
Writing 1
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