R0K572011S000BE Renesas Electronics America, R0K572011S000BE Datasheet - Page 851

• Manufacturer Part Number: R0K572011S000BE
• Description: KIT STARTER FOR SH7201
• Manufacturer: Renesas Electronics America
• Series: Renesas Starter Kits (RSK)r
• Type: MCUr

Specifications of R0K572011S000BE

• Contents: CPU Board, LCD Display Module, E8 Emulator, Cable, QuickStart Guide and CD-ROM
• For Use With/related Products: SH7201
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

SH7201 Group
19.3.3
This area is used as Local Acceptance Filter Mask (LAFM) for receive boxes.
LAFM: When MBC is set to B'001, B'010, B'011, this field is used as LAFM Field. The LAFM is
comprised of two 16-bit read/write areas as follows. It allows a Mailbox to accept more than one
identifier.
If a bit is set in the LAFM, then the corresponding bit of a received CAN identifier is ignored
when the RCAN-ET searches a Mailbox with the matching CAN identifier. If the bit is cleared,
then the corresponding bit of a received CAN identifier must match to the STDID/IDE/EXTID set
in the mailbox to be stored. The structure of the LAFM is same as the message control in a
Mailbox. If this function is not required, it must be filled with '0'.
Important: RCAN-ET starts to find a matching identifier from Mailbox-15 down to Mailbox-0.
As soon as RCAN-ET finds one matching, it stops the search. The message will be stored or not
depending on the NMC and RXPR/RFPR flags. This means that, even using LAFM, a received
message can only be stored into 1 Mailbox.
Important: When a message is received and a matching Mailbox is found, the whole message is
stored into the Mailbox. This means that, if the LAFM is used, the STDID, RTR, IDE and EXTID
may differ to the ones originally set as they are updated with the STDID, RTR, IDE and EXTID of
the received message.
STD_LAFM[10:0] — Filter mask bits for the CAN base identifier [10:0] bits.
R01UH0026EJ0300 Rev. 3.00
Sep 24, 2010
Note: n = 0 to 15 (mailbox number)
STD_LAFM[10:0]
0
1
Register Name
MB[n].LAFMH
MB[n].LAFML
Local Acceptance Filter Mask (LAFM)
H'104 + n
H'106 + n
Address
32
32
Description
Corresponding STD_ID bit is cared
Corresponding STD_ID bit is "don't cared"
LAFM
IDE_
15
14
0
13
0
Figure 19.4 Acceptance Filter
12
11
10
9
EXTID_LAFM[15:0]
STDID_LAFM[10:0]
8
7
6
5
Section 19 Controller Area Network (RCAN-ET)
4
3
2
LAFM[17:16]
1
EXTID_
0
Acces Size
Word/LW
Word
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LAFM Field
Feld Name