Datasheet

Section 15 Controller Area Network for Tiny (TinyCAN)
Rev. 4.00 Mar. 15, 2006 Page 310 of 556
REJ09B0026-0400
15.3.11 Data Frame Receive Complete Register (RXPR)
RXPR is a status flag that indicates the successful reception of data frame messages in the
corresponding Mailboxes. When the received data frame is successfully stored in the receive
Mailbox, the corresponding RXPR bit is set to 1. When a remote frame is received, the bit is not
set to 1.
Bit Bit Name
Initial
Value R/W Description
7 to 4 — All 0 — Reserved
These bits are always read as 0.
3
2
1
0
MB3
MB2
MB1
MB0
0
0
0
0
R/(W)*
R/(W)*
R/(W)*
R/(W)*
[Setting condition]
When the corresponding Mailbox has completed
reception of a data frame
[Clearing condition]
When 1 is written to these bits
Note: * Only 1 can be written to clear the flag.
15.3.12 Remote Request Register (RFPR)
RFPR is a status flag that indicates successful reception of remote frames in the corresponding
Mailboxes. When a data frame is received, the corresponding RFPR bit is not set to 1.
Bit Bit Name
Initial
Value R/W Description
7 to 4 — All 0 — Reserved
These bits are always read as 0.
3
2
1
0
MB3
MB2
MB1
MB0
0
0
0
0
R/(W)*
R/(W)*
R/(W)*
R/(W)*
[Setting condition]
When the corresponding Mailbox has completed
reception of a remote frame
[Clearing condition]
When 1 is written to these bits
Note: * Only 1 can be written to clear the flag.